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What is the force that holds protons and neutrons together in the nucleus of an atom?
asked
Mar 10, 2018
by
anonymous
What is the force that holds protons and neutrons together in the nucleus of an atom?
force
holds
protons
neutrons
nucleus
atom
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asked
Mar 10, 2018
by
anonymous
What is the definition of electromagnetic force?
What is the definition of electromagnetic force?
definition
electromagnetic
force
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May 3, 2018
by
anonymous
The average life of neutrons after they decay is
The average life of neutrons after they decay is
Last answer:
The average life of neutrons after they decay is 10 sec
average
life
neutrons
decay
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asked
Mar 14, 2018
by
anonymous
What is the movement of electrons from atom to atom is called?
What is the movement of electrons from atom to atom is called?
movement
electrons
atom
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asked
Mar 14, 2018
by
anonymous
What is the flow of electrons from one atom to another called?
What is the flow of electrons from one atom to another called?
Last answer:
Electric current
flow
electrons
atom
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asked
May 8, 2018
by
anonymous
Which unit holds data permanently?
Which unit holds data permanently? (A) Input unit (B) Secondary storage unit (C) Output Unit (D) Primary Memory Unit
Last answer:
Which unit holds data permanently? (A) Input unit (B) Secondary storage unit (C) Output Unit (D) Primary Memory Unit
unit
holds
data
permanently
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asked
Mar 25, 2018
by
anonymous
The number of electrons in the outer most orbit of carbon atom is?
The number of electrons in the outer most orbit of carbon atom is?
Last answer:
The number of electrons in the outer most orbit of carbon atom is 4.
number
electrons
orbit
carbon
atom
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asked
Apr 29, 2018
by
anonymous
Which of the following is the name given to the lines of electric force which move so that its beginning traces
Which of the following is the name given to the lines of electric force which move so that its beginning traces a closed curve on a positive surface and its end traces a corresponding closed curve on the negative surface? A) Tube of surface B) Tube of lines C) Tube of force D) Tube of electricity
Last answer:
Which of the following is the name given to the lines of electric force which move so that its beginning traces a closed curve on a positive surface and its end traces a corresponding closed curve on the negative ... A) Tube of surface B) Tube of lines C) Tube of force D) Tube of electricity
lines
electric
force
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asked
Mar 22, 2018
by
anonymous
A single force and a couple acting in the same plane upon a rigid body?
A single force and a couple acting in the same plane upon a rigid body?
Last answer:
A single force and a couple acting in the same plane upon a rigid body cannot balance each other.
single
force
couple
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asked
Mar 11, 2018
by
anonymous
What is locomotive force?
What is locomotive force?
locomotive
force
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asked
Mar 22, 2018
by
anonymous
The unit of force in S.I. units is
The unit of force in S.I. units is
Last answer:
The unit of force in S.I. units is Newton.
unit
force
si
units
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asked
Mar 22, 2018
by
anonymous
On the ladder resting on the ground and leaning against a smooth vertical wall, the force of friction will be?
On the ladder resting on the ground and leaning against a smooth vertical wall, the force of friction will be?
Last answer:
On the ladder resting on the ground and leaning against a smooth vertical wall, the force of friction will be zero at its upper end.
ladder
resting
ground
leaning
smooth
vertical
force
friction
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asked
Mar 22, 2018
by
anonymous
On a ladder resting on smooth ground and leaning against vertical wall, the force of friction will be?
On a ladder resting on smooth ground and leaning against vertical wall, the force of friction will be?
Last answer:
On a ladder resting on smooth ground and leaning against vertical wall, the force of friction will be upwards at its upper end.
ladder
resting
smooth
ground
vertical
force
friction
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asked
Sep 4, 2018
by
anonymous
Define magnetic lines of force. Also draw and show magnetic lines of force of a bar type magnet.
Define magnetic lines of force. Also draw and show magnetic lines of force of a bar type magnet.
Last answer:
Magnetic Lines of force- These are the imaginary lines (having no physical existence) introduced by Faraday for the pictorial representation of the distribution of a magnetic field. OR A line of ... that the tangent at any point gives direction of the resultant force at that point.
define
magnetic
lines
force
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asked
Jul 30, 2019
by
anonymous
Define force and state its effects.
Define force and state its effects.
Last answer:
Force: It is an external agency either push or pull which changes or tends to change the state of rest or of uniform motion of a body, upon which it acts. Effects of force : i) It may change the state ... It may turn or rotate the body on which it acts. iv) It may deform the body on which it acts.
force
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asked
Mar 22, 2018
by
anonymous
Limiting force of friction is the?
Limiting force of friction is the?
Last answer:
Limiting force of friction is the friction force acting when the body is just about to move.
force
friction
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asked
Mar 22, 2018
by
anonymous
The product of either force of couple with the arm of the couple is called?
The product of either force of couple with the arm of the couple is called?
Last answer:
The product of either force of couple with the arm of the couple is called moment of the couple.
product
force
couple
arm
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asked
Jun 29, 2019
by
anonymous
List the particles in the nucleus of an atom.
List the particles in the nucleus of an atom.
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asked
Mar 22, 2018
by
anonymous
Frictional force encountered after commencement of motion is called?
Frictional force encountered after commencement of motion is called?
Last answer:
Frictional force encountered after commencement of motion is called dynamic friction.
frictional
force
commencement
motion
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asked
Aug 8, 2018
by
anonymous
Define magnetic lines of force. Show the magnetic lines of force for bar type magnet.
Define magnetic lines of force. Show the magnetic lines of force for bar type magnet.
Last answer:
Magnetic linens of force is the imaginary lines for magnetic field of magnet around it. These magnetic lines of forces are introduced by Michael Faraday. The direction of lines of force is from N-pole to S-pole. The figure shows lines of force for bar type magnet.
magnetic
lines
force
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asked
Mar 22, 2018
by
anonymous
A force is completely defined when we specify?
A force is completely defined when we specify?
Last answer:
A force is completely defined when we specify magnitude, direction, point of application.
force
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asked
Mar 31, 2018
by
anonymous
The diameter of the nucleus of an atom is of the order of
Last answer:
The diameter of the nucleus of an atom is of the order of 10 -14m.
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asked
Aug 4, 2019
by
anonymous
State principle of transmissibility of force.
State principle of transmissibility of force.
Last answer:
Principle of Transmissibility of Force: It states that if a force acts at a point on a rigid body, it is assumed to act at any other point on the line of action of force within the same body.
transmissibility
force
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asked
Jul 30, 2019
by
anonymous
State law of Parallelogram of force.
State law of Parallelogram of force.
Last answer:
Law of Parallelogram of force: It states that if two forces acting at and away from point be represented in magnitude direction by the two adjacent sides of parallelogram, then the ... passing through the point of intersection of the two forces represents the resultant in magnitude direction .
law
parallelogram
force
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asked
Jul 29, 2019
by
anonymous
State characteristics of force.
State characteristics of force.
Last answer:
i) Magnitude: The quantity of force e.g. 10 N, 100 kN etc. ii) Direction: It is the line along which the force acts. It is also called as line of action of the force. iii) Point of ... . Push: If the arrow head is pointed towards the point of application, the nature of the force is push.
characteristics
force
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asked
Mar 25, 2018
by
anonymous
A field of force can exist only between?
A field of force can exist only between?
Last answer:
A field of force can exist only between two ions.
field
force
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asked
Mar 22, 2018
by
anonymous
Effect of a force on a body depends upon?
Last answer:
Effect of a force on a body depends upon magnitude, direction, position or line of action.
effect
force
body
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105
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asked
Jun 11, 2019
by
anonymous
Magnetomotive force formula
Magnetomotive force formula
Last answer:
Magnetomotive force formula
magnetomotive
force
formula
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asked
Mar 22, 2018
by
anonymous
A force acting on a body may?
A force acting on a body may?
Last answer:
A force acting on a body may introduce internal stresses, balance the other forces acting on it, retard its motion, change its motion.
force
body
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asked
Jul 1, 2019
by
anonymous
An element with 14 protons and 14 electrons has what atomic number?
An element with 14 protons and 14 electrons has what atomic number?
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asked
Jan 11
by
anonymous
180 sweets are divided among friends A, B, C and D in which B and C are brothers also such that sweets divided between A and B are in the ratio 2 : 3, between B and C in the ratio 2 : 5 and between C and D in ratio 3 : 4. What is the number of sweets received by the brothers together? A) 78 B) 84 C) 92 D) 102 E) 88
180 sweets are divided among friends A, B, C and D in which B and C are brothers also such that sweets divided between A and B are in the ratio 2 : 3, between B and C in the ratio 2 : 5 and between C and D in ratio 3 : 4. What is the number of sweets received by the brothers together? A) 78 B) 84 C) 92 D) 102 E) 88
Last answer:
Answer: B A : B : C : D 2*2*3 : 3*2*3 : 3*5*3 : 3*5*4 4 : 6 : 15 : 20 B and C together = [(6+15)/(4+6+15+20)] * 180 = 84
ratio-and-proportion
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asked
Mar 10, 2018
by
anonymous
What is the speed of an electromagnetic wave in water?
What is the speed of an electromagnetic wave in water?
speed
electromagnetic
wave
water
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asked
Jan 10
by
anonymous
Three friends started a Company, let there names are P, Qand R. What profit Q will get, if, 1. R invested Rs. 4000 for nine months, his profit was 3/2 times that of Q's and his investment was four times that of P. 2. P and Q invested for one year in the proportion 1 : 2 respectively. 3. The three together got Rs. 500 as profit at the year end. A) Only 1 and 3 B) Only 1 and 2 C) All 1, 2 and 3 D) None of above
Three friends started a Company, let there names are P, Qand R. What profit Q will get, if, 1. R invested Rs. 4000 for nine months, his profit was 3/2 times that of Q's and his investment was four times that of P. 2. P and Q invested for one year in the proportion 1 : 2 respectively. 3. The three together got Rs. 500 as profit at the year end. A) Only 1 and 3 B) Only 1 and 2 C) All 1, 2 and 3 D) None of above
Last answer:
Answer: C) 1 and 2 will give : R = Rs. (4000 x 9) for 1 year = Rs. 36000 for 1 year. P = Rs. (1/4 * 4000 * 12 ) for 1 year = Rs 12000 for 1 year Q = Rs 24000 for one year R:P:Q = ... Profit = 500 Now from the ratio and total profit we can get Share of R. R share will be = 500 * 2/6 = 166.66
partnership
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asked
Jan 10
by
anonymous
A cricketer played 3 matches in tournament. The respective ratio between the scores of first and second matches was 3:7 and that between the scores of second and third matches between was 7 :2. the difference between first and third matches was 84 runs, what was the cricketer average score in all the matches together? A) 336 B) 146 C) 168 D) 189
A cricketer played 3 matches in tournament. The respective ratio between the scores of first and second matches was 3:7 and that between the scores of second and third matches between was 7 :2. the difference between first and third matches was 84 runs, what was the cricketer average score in all the matches together? A) 336 B) 146 C) 168 D) 189
Last answer:
A) The ratio between first and second matches equal to 3 :7 The ratio between second and third matches=7:2 The difference between first and third matches=3x-2x=84 runs = 84 Required average=1008/3=336 .
average
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asked
Apr 10, 2018
by
anonymous
In Print server which is a buffer that holds data before it is send to the printer.
In Print server which is a buffer that holds data before it is send to the printer. (1) Queue (2) Spool (3) Node (4) Jobs
Last answer:
spool
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1
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asked
Jun 29, 2019
by
anonymous
Why is it that protons are not considered a source of moving charges for current flow?
Why is it that protons are not considered a source of moving charges for current flow?
Last answer:
Protons themselves are not mobile positive charges because they are tightly bound in the nucleus of the atom and cannot be released except by nuclear forces. Therefore, a current of positive charges is a flow of either positive ions in liquids and gases or positive holes in semiconductors.
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asked
Jan 11
by
anonymous
Manish, Rahul and Bharti have some stones with each of the. Five times the number of stones with Rahul equals seven times the number of stones with Manish while five times the number of stones with Manish equals seven times the number of stones with Bharti. What is the minimum number of stones that can be there with all three of them put together? A) 113 B) 109 C) 93 D) 97 E) NONE
Manish, Rahul and Bharti have some stones with each of the. Five times the number of stones with Rahul equals seven times the number of stones with Manish while five times the number of stones with Manish equals seven times the number of stones with Bharti. What is the minimum number of stones that can be there with all three of them put together? A) 113 B) 109 C) 93 D) 97 E) NONE
Last answer:
Answer: B
ratio-and-proportion
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asked
Mar 10, 2018
by
anonymous
What is an example of an electromagnetic?
What is an example of an electromagnetic?
example
electromagnetic
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asked
Jan 10
by
anonymous
Two taps P and Q can fill a cistern in 24 min and 32 min respectively. Both the taps are opened together for a certain time but due to some obstruction the flow of water was restricted to 7/4 of full flow in tap P and 5/3 of full in tap Q. This obstruction is removed after some time and cistern is now filled in 6min from that moment. How long was it before the full flow. A) 8 min B) 3 min C) 5.6 min D) 4.5 min
Two taps P and Q can fill a cistern in 24 min and 32 min respectively. Both the taps are opened together for a certain time but due to some obstruction the flow of water was restricted to 7/4 of full flow in tap P and 5/3 of full in tap Q. This obstruction is removed after some time and cistern is now filled in 6min from that moment. How long was it before the full flow. A) 8 min B) 3 min C) 5.6 min D) 4.5 min
Last answer:
D Let the obstruction remain for X min. Hence, Part of cistern filled in X min + part of cistern filled in 6 min = full cistern [(7X/4*24)+(5X/3*32)]+[(6/24)+(6/32)] = 1 (12X/96)+(7/16) = 1 12x/96=9/16 Thus, X = 4.5 min.
pipes-and-cistern
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22 hours
ago
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anonymous
Say’s Law of Market holds that (1) supply is not equal to demand (2) supply creates its own demand (3) demand creates its own supply (4) supply is greater than demand
Say’s Law of Market holds that (1) supply is not equal to demand (2) supply creates its own demand (3) demand creates its own supply (4) supply is greater than demand
Last answer:
supply creates its own demand
economics
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asked
May 16, 2018
by
anonymous
In any atom the potential energy of an orbiting electron is
In any atom the potential energy of an orbiting electron is (A) always positive (B) always negative (C) sometime positive, sometime negative (D) numerically less then its kinetic energy.
Last answer:
In any atom the potential energy of an orbiting electron is always negative
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asked
Apr 23, 2018
by
anonymous
Orbital magnetic moment of an electron, in an atom, is of the order of
Orbital magnetic moment of an electron, in an atom, is of the order of (a) 0.1 Bohr magneton (b) 1.0 Bohr magneton (c) 10 Bohr magneton (d) 100 Bohr magneton
Last answer:
Orbital magnetic moment of an electron, in an atom, is of the order of 1.0 Bohr magneton
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asked
Jan 10
by
anonymous
A Bunker has a leak which would empty the completely filled bunker in 20 hours. If the bunker is full of water and a tap is opened which admits 4 litres of water per minutes in the bunker, how many litres does the bunker holds? A) 2400 B) 4500 C) 4800 D) 7200
A Bunker has a leak which would empty the completely filled bunker in 20 hours. If the bunker is full of water and a tap is opened which admits 4 litres of water per minutes in the bunker, how many litres does the bunker holds? A) 2400 B) 4500 C) 4800 D) 7200
Last answer:
C Leak emptied the bunker per hour = 100/20 = 5% of water per hour; Quantity of water emptied per hour = 4*60 = 240; Thus, 5% = 240 liter; Hence, capacity of water, 100% = 240*100/5= 4800 liter.
pipes-and-cistern
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asked
Jan 9
by
anonymous
Murali and his wife appear in an interview for two vacancies in the same post. The probability of murali's selection is (1/6) and the probability of wife's selection is (1/4). What is the probability that only one of them is selected ? A) 8/25 B) 1/7 C) 3/4 D) 1/3
Murali and his wife appear in an interview for two vacancies in the same post. The probability of murali's selection is (1/6) and the probability of wife's selection is (1/4). What is the probability that only one of them is selected ? A) 8/25 B) 1/7 C) 3/4 D) 1/3
Last answer:
Answer: D)
probability
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Mar 28, 2018
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anonymous
_______ is a negatively charged particle present in an atom.
_______ is a negatively charged particle present in an atom.
Last answer:
Electron is a negatively charged particle present in an atom.
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asked
Sep 29, 2018
by
anonymous
What force is required to give a mass of 20kg an accceleration of 30m/s
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6 days
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anonymous
Arul can do a certain work in 9 days while Ravi can do the same work in 7 days. Both of them complete the work together and get Rs.288. what is the share of Arul? a) Rs.124 b) RS.126 c) Rs.128 d) Rs.130
Arul can do a certain work in 9 days while Ravi can do the same work in 7 days. Both of them complete the work together and get Rs.288. what is the share of Arul? a) Rs.124 b) RS.126 c) Rs.128 d) Rs.130
Last answer:
B Arul’s 1 day work = 1/9 Ravi’s 1 day work = 1/7 Arul’s salary : Ravi’s salary = Arul’s 1 day work : Ravi’s 1 day work = 1/9 : 1/7 = 7 :9 Arul’s share = Rs.(7/16 *288) =Rs.126
time-and-work
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asked
Jan 12
by
anonymous
P and Q together can complete a job in 30 days. Q and R together can complete the same job in 40 days. P and R together can complete the same job in 40 days. What is the respective ratio of the number of days taken by P when completing the same job alone to the number of days taken by R when completing the same job alone? a) A.2:5 b) B.1:2 c) C.3:4 d) D.2:3
P and Q together can complete a job in 30 days. Q and R together can complete the same job in 40 days. P and R together can complete the same job in 40 days. What is the respective ratio of the number of days taken by P when completing the same job alone to the number of days taken by R when completing the same job alone? a) A.2:5 b) B.1:2 c) C.3:4 d) D.2:3
Last answer:
B Efficiency of P and Q= 1/30 per day ___________1 ⇒ Efficiency of Q and R = 1/40 per day_________2 ⇒ Efficiency of R and P = 1/40 per day _________3 Taking equation 2 and 3 together ⇒ Q + R = ... 120 days he they work alone. ⇒ Ratio of number of days in which P and R can complete the job 1:2.
time-and-work
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asked
Jan 9
by
anonymous
A motorboat can cover 80 km upstream and 120 km downstream together in 26 hours. Also it can cover 100 km upstream and 144 km downstream together in 32 hours. What is the speed of the motorboat in still water? A) 12 km/hr B) 15km/hr C) 8.5km/hr D) 19km/hr
A motorboat can cover 80 km upstream and 120 km downstream together in 26 hours. Also it can cover 100 km upstream and 144 km downstream together in 32 hours. What is the speed of the motorboat in still water? A) 12 km/hr B) 15km/hr C) 8.5km/hr D) 19km/hr
Last answer:
ANSWER :C Explanation: Upstream speed in both cases is 80 and 100. Ratio is 80 : 100 = 8:10 = 4 : 5. So let times in both cases be 4x and 5x Downstream speed in both cases is 120 and 144 resp. Ratio is ... 12 km/hr So speed of boat = 1/2 * (5+12) =17/2km/hr speed of boat = 8.5 km/hr
boats
streams
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Sep 1, 2018
by
anonymous
The probability of a photon ionizing an atom or molecule is maximum when (hv-eVi) is as small as:
The probability of a photon ionizing an atom or molecule is maximum when (hv-eVi) is as small as: a. 0.5 b. 1.5 c. 3.5 d. 10
Last answer:
The probability of a photon ionizing an atom or molecule is maximum when (hv-eVi) is as small as: a. 0.5 b. 1.5 c. 3.5 d. 10
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Mar 28, 2018
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anonymous
In a crystal, an atom vibrates at a frequency determined by
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In a crystal, an atom vibrates at a frequency determined by the stiffness of the bonds it makes with neighbors.
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