9478 + Interview Questions in Physics Page 110 InterviewSolution

5451.	is graphite lubricant because of london forces between its layers or because of network structure
Answer» is graphite lubricant because of london forces between its layers or because of network structure

Discussion

5452.	A jar has a mixture of hydrogen and oxygen gases in the ratio1:5, the ratio of mean kinetic energy of hydrogen and oxygen molecule is . 1. 1:16 2.1:4 3. 1:5 4. 1:1
Answer» A jar has a mixture of hydrogen and oxygen gases in the ratio1:5, the ratio of mean kinetic energy of hydrogen and oxygen molecule is . 1. 1:16 2.1:4 3. 1:5 4. 1:1

Discussion

5453.	Which of the following examples represents the chemical effect of current?
Answer» Which of the following examples represents the chemical effect of current?

Discussion

5454.	What things makes us enable to see the moving pictures and why?
Answer» What things makes us enable to see the moving pictures and why?

Discussion

5455.	Force can change the shape of an object. When water is poured into a container, it changes its shape into that of the container. Then, is there any force exerted by the bottle on the fluid so that it changes its shape?
Answer» Force can change the shape of an object. When water is poured into a container, it changes its shape into that of the container. Then, is there any force exerted by the bottle on the fluid so that it changes its shape?

Discussion

5456.	A silver ornament is suspected to be hollow. Its weight is 250g and it displaces 50 cc of water. If the relative density of silver be 10, find the volume of the cavity.
Answer» A silver ornament is suspected to be hollow. Its weight is 250g and it displaces 50 cc of water. If the relative density of silver be 10, find the volume of the cavity.

Discussion

5457.	Four wheel loads of 6 kN, 4 kN,8kN and 5 kN cross a girder of 20 m span followed by uniformly distributed load of 4 kN/m and 4 m long with the 6 kN load leading. The magnitude of bending moment at a section 8 m from the left support is kNm. 108.4
Answer» Four wheel loads of 6 kN, 4 kN,8kN and 5 kN cross a girder of 20 m span followed by uniformly distributed load of 4 kN/m and 4 m long with the 6 kN load leading. The magnitude of bending moment at a section 8 m from the left support is kNm. 108.4

5457.

Four wheel loads of 6 kN, 4 kN,8kN and 5 kN cross a girder of 20 m span followed by uniformly distributed load of 4 kN/m and 4 m long with the 6 kN load leading. The magnitude of bending moment at a section 8 m from the left support is kNm. 108.4

Answer»

Four wheel loads of 6 kN, 4 kN,8kN and 5 kN cross a girder of 20 m span followed by uniformly distributed load of 4 kN/m and 4 m long with the 6 kN load leading. The magnitude of bending moment at a section 8 m from the left support is kNm.

108.4

Discussion

5458.	band dizzy smile string tug wind
Answer» band dizzy smile string tug wind

Discussion

5459.	3.Explain the statement- In a straight line motion it is possible that acceleration is reverting back it's direction but velocity is not and vice versa.
Answer» 3.Explain the statement- In a straight line motion it is possible that acceleration is reverting back it's direction but velocity is not and vice versa.

Discussion

5460.	A column of air extending up to the height of atmosphere and base of area 10 cm × 10 cm was kept above a boy's head. Why didn't he get crushed?
Answer» A column of air extending up to the height of atmosphere and base of area 10 cm $\times$ 10 cm was kept above a boy's head. Why didn't he get crushed?

Discussion

5461.	The mass of an empty bucket of capacity 10 litres is one kg. Find its mass in kg when completely filled with the liquid of relatively density 0.8.
Answer» The mass of an empty bucket of capacity 10 litres is one kg. Find its mass in kg when completely filled with the liquid of relatively density 0.8.

Discussion

5462.	Which of the following is bad conductor of electricity?
Answer» Which of the following is bad conductor of electricity?

Discussion

5463.	The true stress (in MPa) versus true strain relationship for a metal is given by σ=1020ϵ0.4 The cross-sectional area at the start of a test (when the stress and strain values are equal to zero) is 100mm2. The cross-sectional area at the time of necking (inmm2) is (correct to two decimal places).
Answer» The true stress (in MPa) versus true strain relationship for a metal is given by $σ = 1020 ϵ^{0.4}$ The cross-sectional area at the start of a test (when the stress and strain values are equal to zero) is $100 m m^{2}$ . The cross-sectional area at the time of necking ( $i n m m^{2})$ is (correct to two decimal places).

Discussion

5464.	Assuming that a toy car is pushed with the same force, on which of the following surfaces would it travel the farthest?
Answer» Assuming that a toy car is pushed with the same force, on which of the following surfaces would it travel the farthest?

Discussion

5465.	a uniform rod of mass M pulled by forve F on smoothbsurface the value of tensionT in the rod variesbwithbthe dis†an ce X from the force end is according to the gra
Answer» a uniform rod of mass M pulled by forve F on smoothbsurface the value of tensionT in the rod variesbwithbthe dis†an ce X from the force end is according to the gra

Discussion

5466.	1. What is angle of friction? 2. What is the possible maximum value of angle 'theta' Which a cyclist can make from vertical when taking a turn in a circular track?can he bent at an angle 45 degree ? 3. What is the maximum value of coefficient of kinetic and static friction?
Answer» 1. What is angle of friction? 2. What is the possible maximum value of angle 'theta' Which a cyclist can make from vertical when taking a turn in a circular track?can he bent at an angle 45 degree ? 3. What is the maximum value of coefficient of kinetic and static friction?

Discussion

5467.	Question 2When a glass rod is rubbed with a piece of silk cloth the rod : a) both glass rod and the cloth both acquire positive charge.b) glass rod becomes positively charged while the cloth has a negative charge.c) both glass rod and the cloth both acquire negative charge.d)glass rod becomes negatively charged while the cloth has a positive charge.
Answer» Question 2 When a glass rod is rubbed with a piece of silk cloth the rod : a) both glass rod and the cloth both acquire positive charge. b) glass rod becomes positively charged while the cloth has a negative charge. c) both glass rod and the cloth both acquire negative charge. d)glass rod becomes negatively charged while the cloth has a positive charge.

5467.

Question 2When a glass rod is rubbed with a piece of silk cloth the rod : a) both glass rod and the cloth both acquire positive charge.b) glass rod becomes positively charged while the cloth has a negative charge.c) both glass rod and the cloth both acquire negative charge.d)glass rod becomes negatively charged while the cloth has a positive charge.

Answer»

Question 2

When a glass rod is rubbed with a piece of silk cloth the rod :

a) both glass rod and the cloth both acquire positive charge.

b) glass rod becomes positively charged while the cloth has a negative charge.

c) both glass rod and the cloth both acquire negative charge.

d)glass rod becomes negatively charged while the cloth has a positive charge.

Discussion

5468.	A car with a vertical windshield moves in a rainstorm at a speed of 40 km/hr. The rain drops fallvertically with constant speed of 20 m/s. The angle at which rain drops strike the windshield is
Answer» A car with a vertical windshield moves in a rainstorm at a speed of 40 km/hr. The rain drops fallvertically with constant speed of 20 m/s. The angle at which rain drops strike the windshield is

Discussion

5469.	61.4 gram of a gas occupies 22.4 litre at ntp the specific heat capacity of gas at constant volume is 5. if speed of sound in this gas at ntp is 952 m/s.then heat capacity at constant pressure is 1)8.5 2)8 3)7.5 4)7
Answer» 61.4 gram of a gas occupies 22.4 litre at ntp the specific heat capacity of gas at constant volume is 5. if speed of sound in this gas at ntp is 952 m/s.then heat capacity at constant pressure is 1)8.5 2)8 3)7.5 4)7

Discussion

5470.	Question 17.1 Find out the position of the image of an object situated at A in the plane mirror (Fig. 16.21).
Answer» Question 17.1 Find out the position of the image of an object situated at A in the plane mirror (Fig. 16.21).

Discussion

5471.	In the following situations identify the agent exerting the force and the object on which it acts. State the effect of the force in each case.(a) Squeezing a piece of lemon between the fingers to extract its juice.(b) Taking out paste from a toothpaste tube.(c) A load suspended from a spring while its other end is on a hook fixed to a wall.(d) An athlete making a high jump to clear the bar at a certain height.
Answer» In the following situations identify the agent exerting the force and the object on which it acts. State the effect of the force in each case. (a) Squeezing a piece of lemon between the fingers to extract its juice. (b) Taking out paste from a toothpaste tube. (c) A load suspended from a spring while its other end is on a hook fixed to a wall. (d) An athlete making a high jump to clear the bar at a certain height.

Discussion

5472.	Comment on the relationship shared by Mammachi and Pappachi.
Answer» Comment on the relationship shared by Mammachi and Pappachi.

Discussion

5473.	In Millikan’s oil drop experiment the charge of three oil drops X Y Z have been found to be , 0.04 and 0.8 respectively . What could probable charge of electron and the number of electrons attached to this oil drops?
Answer» In Millikan’s oil drop experiment the charge of three oil drops X Y Z have been found to be , 0.04 and 0.8 respectively . What could probable charge of electron and the number of electrons attached to this oil drops?

Discussion

5474.	What is force how is it caused?
Answer» What is force how is it caused?

Discussion

5475.	What is lighting strike?
Answer» What is lighting strike?

Discussion

5476.	Question 4 (d) A celestial body that revolves around a planet is known as a_________.
Answer» Question 4 (d) A celestial body that revolves around a planet is known as a_________.

5476.

Question 4 (d) A celestial body that revolves around a planet is known as a_________.

Answer»

Question 4 (d)

A celestial body that revolves around a planet is known as a_________.

Discussion

5477.	23.The the ratio velocity of two object A and B is 1 ratio 3 if the position time graph a graph of object is inclined to time Axis at 30^° and the position time graph of object be is inclined to time Axis at
Answer» 23.The the ratio velocity of two object A and B is 1 ratio 3 if the position time graph a graph of object is inclined to time Axis at 30^° and the position time graph of object be is inclined to time Axis at

Discussion

5478.	The frictional force exerted by fluids is also called ___.
Answer» The frictional force exerted by fluids is also called ___.

Discussion

5479.	Select the device that can be used to protect a building from lightning.
Answer» Select the device that can be used to protect a building from lightning.

Discussion

5480.	It is known that the image of an object gets laterally inverted in a plane mirror, yet we are unable to recognize any change in our structure or appearance in the image. What can be the possible reason for the same?
Answer» It is known that the image of an object gets laterally inverted in a plane mirror, yet we are unable to recognize any change in our structure or appearance in the image. What can be the possible reason for the same?

Discussion

5481.	A particle is moving in a circular path of radius r, the displacement after covering half a circle would be
Answer» A particle is moving in a circular path of radius r, the displacement after covering half a circle would be

Discussion

5482.	Three equal charges q are placed at the vertices of an equilateral triangle of side a asshown in figure. The force on one charge due to rest two charges is where k-
Answer» Three equal charges q are placed at the vertices of an equilateral triangle of side a as shown in figure. The force on one charge due to rest two charges is where k-

Discussion

5483.	A particle of mass m is moving on a straight line such that it's velocity changes with X travelled as v = k√x where k is a positive constant the work done by net force on the particle during first t second is
Answer» A particle of mass m is moving on a straight line such that it's velocity changes with X travelled as v = k√x where k is a positive constant the work done by net force on the particle during first t second is

Discussion

5484.	Which of the following are fundamental forces?
Answer» Which of the following are fundamental forces?

Discussion

5485.	32^{12} ≡ x\lbrack mod 13\rbrack ,,,,,, then x=?
Answer» 32^{12} ≡ x\lbrack mod 13\rbrack ,,,,,, then x=?

Discussion

5486.	11. What is the chargee on N(Nitrogen) the following 1-C6H5NO2 2-C6H5NH2. And expalin it?
Answer» 11. What is the chargee on N(Nitrogen) the following 1-C6H5NO2 2-C6H5NH2. And expalin it?

Discussion

5487.	the expression pKh -pKw +pKb=0 is suitable for the salt 1. FeCl3 2. NaCN 3.Ag2SO4 4. all
Answer» the expression pKh -pKw +pKb=0 is suitable for the salt 1. FeCl3 2. NaCN 3.Ag2SO4 4. all

Discussion

5488.	what is the physical state of water at 40 degree celsius and why
Answer» what is the physical state of water at 40 degree celsius and why

Discussion

5489.	Choose the correct statement. (1) The average speed is always equal to the average velocity(2) The magnitude of average velocity is always less than or equal to the average speed(3) The magnitude of average velocity is always greater than or equal to the average speed(4) There is no difference between the average speed and the average velocity
Answer» Choose the correct statement. (1) The average speed is always equal to the average velocity (2) The magnitude of average velocity is always less than or equal to the average speed (3) The magnitude of average velocity is always greater than or equal to the average speed (4) There is no difference between the average speed and the average velocity

Discussion

5490.	define si unit of force in terns of electrostatics ?
Answer» define si unit of force in terns of electrostatics ?

Discussion

5491.	Ocean wave is an example of a ___wave.
Answer» Ocean wave is an example of a ___wave.

Discussion

5492.	Write the names of the month which corresponds with the picture given.
Answer» Write the names of the month which corresponds with the picture given.

Discussion

5493.	What do you mean by artificial sources of light?
Answer» What do you mean by artificial sources of light?

Discussion

5494.	Rohan has a matchbox but he is not able to light a matchstick. What could be the reason for it?
Answer» Rohan has a matchbox but he is not able to light a matchstick. What could be the reason for it?

Discussion

5495.	What is the function of three tiny bones in the ear?
Answer» What is the function of three tiny bones in the ear?

Discussion

5496.	In a transistor which of the following will be present :-
Answer» In a transistor which of the following will be present :-

Discussion

5497.	The speed of light in air or vacuum is:
Answer» The speed of light in air or vacuum is:

Discussion

5498.	A wheel of radius R and mass M is placed at the bottom of a fixed step of height R as shown in the figure. A constant force is continuously applied on the surface of the wheel so that it just climbs the step without slipping. Consider the torque τ about an axis normal to the plane of the paper passing through the point Q. Which of the following options is/are correct?
Answer» A wheel of radius $R$ and mass $M$ is placed at the bottom of a fixed step of height $R$ as shown in the figure. A constant force is continuously applied on the surface of the wheel so that it just climbs the step without slipping. Consider the torque $τ$ about an axis normal to the plane of the paper passing through the point $Q$ . Which of the following options is/are correct?

Discussion

5499.	Name the star which remains fixed at the same place in the sky in the North.
Answer» Name the star which remains fixed at the same place in the sky in the North.

Discussion

5500.	Difference between welding and soldering
Answer» Difference between welding and soldering

Discussion

Explore topic-wise InterviewSolutions in .

is graphite lubricant because of london forces between its layers or because of network structure

A jar has a mixture of hydrogen and oxygen gases in the ratio1:5, the ratio of mean kinetic energy of hydrogen and oxygen molecule is . 1. 1:16 2.1:4 3. 1:5 4. 1:1

Which of the following examples represents the chemical effect of current?

What things makes us enable to see the moving pictures and why?

Force can change the shape of an object. When water is poured into a container, it changes its shape into that of the container. Then, is there any force exerted by the bottle on the fluid so that it changes its shape?

A silver ornament is suspected to be hollow. Its weight is 250g and it displaces 50 cc of water. If the relative density of silver be 10, find the volume of the cavity.

Four wheel loads of 6 kN, 4 kN,8kN and 5 kN cross a girder of 20 m span followed by uniformly distributed load of 4 kN/m and 4 m long with the 6 kN load leading. The magnitude of bending moment at a section 8 m from the left support is kNm. 108.4

band dizzy smile string tug wind

3.Explain the statement- In a straight line motion it is possible that acceleration is reverting back it's direction but velocity is not and vice versa.

A column of air extending up to the height of atmosphere and base of area 10 cm × 10 cm was kept above a boy's head. Why didn't he get crushed?

The mass of an empty bucket of capacity 10 litres is one kg. Find its mass in kg when completely filled with the liquid of relatively density 0.8.

Which of the following is bad conductor of electricity?

The true stress (in MPa) versus true strain relationship for a metal is given by σ=1020ϵ0.4 The cross-sectional area at the start of a test (when the stress and strain values are equal to zero) is 100mm2. The cross-sectional area at the time of necking (inmm2) is (correct to two decimal places).

Assuming that a toy car is pushed with the same force, on which of the following surfaces would it travel the farthest?

a uniform rod of mass M pulled by forve F on smoothbsurface the value of tensionT in the rod variesbwithbthe dis†an ce X from the force end is according to the gra

1. What is angle of friction? 2. What is the possible maximum value of angle 'theta' Which a cyclist can make from vertical when taking a turn in a circular track?can he bent at an angle 45 degree ? 3. What is the maximum value of coefficient of kinetic and static friction?

A car with a vertical windshield moves in a rainstorm at a speed of 40 km/hr. The rain drops fallvertically with constant speed of 20 m/s. The angle at which rain drops strike the windshield is

61.4 gram of a gas occupies 22.4 litre at ntp the specific heat capacity of gas at constant volume is 5. if speed of sound in this gas at ntp is 952 m/s.then heat capacity at constant pressure is 1)8.5 2)8 3)7.5 4)7

Question 17.1 Find out the position of the image of an object situated at A in the plane mirror (Fig. 16.21).

Comment on the relationship shared by Mammachi and Pappachi.

In Millikan’s oil drop experiment the charge of three oil drops X Y Z have been found to be , 0.04 and 0.8 respectively . What could probable charge of electron and the number of electrons attached to this oil drops?

What is force how is it caused?

What is lighting strike?

Question 4 (d) A celestial body that revolves around a planet is known as a_________.

23.The the ratio velocity of two object A and B is 1 ratio 3 if the position time graph a graph of object is inclined to time Axis at 30^° and the position time graph of object be is inclined to time Axis at

The frictional force exerted by fluids is also called ___.

Select the device that can be used to protect a building from lightning.

It is known that the image of an object gets laterally inverted in a plane mirror, yet we are unable to recognize any change in our structure or appearance in the image. What can be the possible reason for the same?

A particle is moving in a circular path of radius r, the displacement after covering half a circle would be

Three equal charges q are placed at the vertices of an equilateral triangle of side a asshown in figure. The force on one charge due to rest two charges is where k-

A particle of mass m is moving on a straight line such that it's velocity changes with X travelled as v = k√x where k is a positive constant the work done by net force on the particle during first t second is

Which of the following are fundamental forces?

32^{12} ≡ x\lbrack mod 13\rbrack ,,,,,, then x=?

11. What is the chargee on N(Nitrogen) the following 1-C6H5NO2 2-C6H5NH2. And expalin it?

the expression pKh -pKw +pKb=0 is suitable for the salt 1. FeCl3 2. NaCN 3.Ag2SO4 4. all

what is the physical state of water at 40 degree celsius and why

define si unit of force in terns of electrostatics ?

Ocean wave is an example of a ___wave.

Write the names of the month which corresponds with the picture given.

What do you mean by artificial sources of light?

Rohan has a matchbox but he is not able to light a matchstick. What could be the reason for it?

What is the function of three tiny bones in the ear?

In a transistor which of the following will be present :-

The speed of light in air or vacuum is:

Name the star which remains fixed at the same place in the sky in the North.

Difference between welding and soldering