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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 1851. |
32. A 2m long rod of radius 1cm which is fixed from one end is given a twist of 0.8 radius.The shear strain developed in wire is |
| Answer» 32. A 2m long rod of radius 1cm which is fixed from one end is given a twist of 0.8 radius.The shear strain developed in wire is | |
| 1852. |
Describe the constellation Orion. |
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Answer» Describe the constellation Orion. |
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| 1853. |
Rahul is standing still with a 5 kg weight on his head for 5 hours. The work done is . |
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Answer» Rahul is standing still with a 5 kg weight on his head for 5 hours. The work done is |
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| 1854. |
41 What is heat of hydration ? |
| Answer» 41 What is heat of hydration ? | |
| 1855. |
S.I unit of kinetic energy is joule(J).What is the S.I unit of potential energy? |
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Answer» S.I unit of kinetic energy is joule(J).What is the S.I unit of potential energy? |
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| 1856. |
The wavelength of H alpha of balmr series is 6500 angstorm . what is the wavelengh of H beta line of balmer series ? |
| Answer» The wavelength of H alpha of balmr series is 6500 angstorm . what is the wavelengh of H beta line of balmer series ? | |
| 1857. |
a wire of resistance R and of radius r is drawn into another wire of radius 2r, the new resistance of the wire will be- |
| Answer» a wire of resistance R and of radius r is drawn into another wire of radius 2r, the new resistance of the wire will be- | |
| 1858. |
Two boys were playing with a ball on a level ground. One of the boys throws the ball on to the third floor of the building which is at a height of 5 m from level ground and the other boy manages to throw on to the fourth floor which is at a height of 7 m from the level ground. The ratio of the work done by both the boys is? |
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Answer» Two boys were playing with a ball on a level ground. One of the boys throws the ball on to the third floor of the building which is at a height of 5 m from level ground and the other boy manages to throw on to the fourth floor which is at a height of 7 m from the level ground. |
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| 1859. |
A park having a circular grass bed 10 m in diameter such that there is a path3 m wide all along the park. __ m2 is the total area of the path. |
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Answer» A park having a circular grass bed 10 m in diameter such that there is a path3 m wide all along the park. |
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| 1860. |
The effect of gravitational power on a body thrown in a projectile - a)Varies linearly with time b)Remains cons†an t throughout c)Is negative along the path d)First decreases then increase |
| Answer» The effect of gravitational power on a body thrown in a projectile - a)Varies linearly with time b)Remains cons†an t throughout c)Is negative along the path d)First decreases then increase | |
| 1861. |
A ball is dropped from an elevator moving upward with acceleration 'a' by a boy s†an ding in it.The acceleration of ball with respect to \lbrack take upward direction positive \rbrack a.Boy is -g b.Boy is -\lbrack g+a\rbrack c.Ground is -g d.both 2 and 3 |
| Answer» A ball is dropped from an elevator moving upward with acceleration 'a' by a boy s†an ding in it.The acceleration of ball with respect to \lbrack take upward direction positive \rbrack a.Boy is -g b.Boy is -\lbrack g+a\rbrack c.Ground is -g d.both 2 and 3 | |
| 1862. |
Pivoting of the compass needle on a sharp pin enable it to ___ . |
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Answer» Pivoting of the compass needle on a sharp pin enable it to |
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| 1863. |
A person moves 30m north and 20m towards east and finally 30 root 2 in south west direction. The displacement of the person from the origin will be |
| Answer» A person moves 30m north and 20m towards east and finally 30 root 2 in south west direction. The displacement of the person from the origin will be | |
| 1864. |
Potential difference=Work done/charge ⇒ Potential difference is inversely proportional to charge as,charge=current × time⇒ charge is directly proportional to current ⇒ Potential difference is directly proportional to current But this violates ohm's law which states that Potential difference is directly propprtional to current |
| Answer» Potential difference=Work done/charge ⇒ Potential difference is inversely proportional to charge as,charge=current × time⇒ charge is directly proportional to current ⇒ Potential difference is directly proportional to current But this violates ohm's law which states that Potential difference is directly propprtional to current | |
| 1865. |
Question 15The power of a motor pump is 2 kW. How much water per minute the pump can raise to a height of 10 m? (Given g=10ms−2) |
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Answer» Question 15 The power of a motor pump is 2 kW. How much water per minute the pump can raise to a height of 10 m? (Given g=10ms−2) |
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| 1866. |
Three charged particles having charges qare placed in a line at points a, 0), (0,0) & (a, 0)respectively. The expression for electric potential atP(r, 0) for r>> a is |
| Answer» Three charged particles having charges qare placed in a line at points a, 0), (0,0) & (a, 0)respectively. The expression for electric potential atP(r, 0) for r>> a is | |
| 1867. |
Question 7 Will the compass needle show deflection when the switch in the circuit shown in the figure is closed? |
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Answer» Question 7 |
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| 1868. |
Give one use each for good and bad conductors of heat. |
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Answer» Give one use each for good and bad conductors of heat. |
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| 1869. |
A copper wire of 3 mm diameter is bent into a circle and held with its end just in contact . If the maximum permissible strain in copper is 0.0025, what is the shortest length of the wire that can be used ............(in mm)3769.911 |
Answer» A copper wire of 3 mm diameter is bent into a circle and held with its end just in contact . If the maximum permissible strain in copper is 0.0025, what is the shortest length of the wire that can be used ............(in mm)
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| 1870. |
An object starts at A, and travels at a speed of 40 kmph for 5 hours. It comes to rest at B. Another object starts at A and moves towards B, an hour after the first object has started. In order to reach the point B at the same time as the first object, with what speed must the second object travel? |
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Answer» An object starts at A, and travels at a speed of 40 kmph for 5 hours. It comes to rest at B. Another object starts at A and moves towards B, an hour after the first object has started. |
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| 1871. |
if a mirror and a interface intersects and the incident ray falls on the intersection point of the mirror and the interface here will the reflected ray moves? |
| Answer» if a mirror and a interface intersects and the incident ray falls on the intersection point of the mirror and the interface here will the reflected ray moves? | |
| 1872. |
6. The displacement of a particle executing SHM given as X=0.01 sin 100(t+0.05) then the time period is? |
| Answer» 6. The displacement of a particle executing SHM given as X=0.01 sin 100(t+0.05) then the time period is? | |
| 1873. |
A and B are parallel rays. Complete the figure and find the angle of incidence on mirror X and the angle of reflection for the ray on mirror Y |
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Answer» A and B are parallel rays. Complete the figure and find the angle of incidence on mirror X and the angle of reflection for the ray on mirror Y |
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| 1874. |
The bouncing back of light from a shiny surface is called as ___________. |
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Answer» The bouncing back of light from a shiny surface is called as ___________. |
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| 1875. |
Question 21A light and a heavy object have the same momentum. Find out the ratio of their kinetic energies. Which one has a larger kinetic energy? |
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Answer» Question 21 A light and a heavy object have the same momentum. Find out the ratio of their kinetic energies. Which one has a larger kinetic energy? |
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| 1876. |
What is a second's pendulum?what is its length? |
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Answer» What is a second's pendulum?what is its length? |
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| 1877. |
An object covers through 10 metres in 2 minutes and next 20 kilometres in at the speed of 60 km per hour. calculate the average speed |
| Answer» An object covers through 10 metres in 2 minutes and next 20 kilometres in at the speed of 60 km per hour. calculate the average speed | |
| 1878. |
A boy starts from a point O and travels 50m in 30s. He returns back to the same point O in 20s. Calculate the average velocity of the boy. |
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Answer» A boy starts from a point O and travels 50m in 30s. He returns back to the same point O in 20s. Calculate the average velocity of the boy. |
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| 1879. |
Question 27Why is parallel arrangement used in domestic wiring? |
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Answer» Question 27 Why is parallel arrangement used in domestic wiring? |
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| 1880. |
if 500g of water at 100 degree celsius is mixed with 300g of water at 0 degree celsius. what will be the final temp of the mixture? |
| Answer» if 500g of water at 100 degree celsius is mixed with 300g of water at 0 degree celsius. what will be the final temp of the mixture? | |
| 1881. |
Which one of these things can a thermal insulator NOT do? |
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Answer» Which one of these things can a thermal insulator NOT do? |
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| 1882. |
34.A charge Q is placed at the center of a square. if the electric field intensity due to charge at the corners of square is E1 and the intensity at the mid point of the side of square is E2. then find out the ratio of E1 /E2. |
| Answer» 34.A charge Q is placed at the center of a square. if the electric field intensity due to charge at the corners of square is E1 and the intensity at the mid point of the side of square is E2. then find out the ratio of E1 /E2. | |
| 1883. |
An object on the Earth is moved from one position to another position vertically. The potential energy is independent of ____. |
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Answer» An object on the Earth is moved from one position to another position vertically. |
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| 1884. |
Q-1 : Why are ventilators situated high up near the ceiling of a room ? Q-2 : Why does smoke rise ? Q-3 : What happens when we touch a cold metal spoon ? Why does it feel cold ? Explain |
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Answer» Q-1 : Why are ventilators situated high up near the ceiling of a room ? Q-2 : Why does smoke rise ? Q-3 : What happens when we touch a cold metal spoon ? Why does it feel cold ? Explain |
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| 1885. |
A very thin metallic shell of radius r is heated to temperature T and allowed to cool. What is the relation between rate of cooling and radius |
| Answer» A very thin metallic shell of radius r is heated to temperature T and allowed to cool. What is the relation between rate of cooling and radius | |
| 1886. |
what are the properties of magnetic lines? |
| Answer» what are the properties of magnetic lines? | |
| 1887. |
Why does dust settle on a mirror no matter how much you rub it with a dry cloth? |
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Answer» Why does dust settle on a mirror no matter how much you rub it with a dry cloth? |
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| 1888. |
ntA body moving with uniform retardation covers 3km before its speed is reduced to half of its initial value.It comes to rest in another distance of?n |
| Answer» ntA body moving with uniform retardation covers 3km before its speed is reduced to half of its initial value.It comes to rest in another distance of?n | |
| 1889. |
a car with a vertical windshield moves in a rain storm at a speed of 40km/hr. the rain drop falls vertically with cons†an t speed of 20m/s. the angle at which rain drops strikes the windsheild is. de |
| Answer» a car with a vertical windshield moves in a rain storm at a speed of 40km/hr. the rain drop falls vertically with cons†an t speed of 20m/s. the angle at which rain drops strikes the windsheild is. de | |
| 1890. |
What is a lateral inversion? |
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Answer» What is a lateral inversion? |
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| 1891. |
A rubber sucker, when pressed on a surface sticks to it, because: |
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Answer» A rubber sucker, when pressed on a surface sticks to it, because: |
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| 1892. |
body moves with accelaration of 1m/s^2 for time=5s and then moves at cons†an t velocity for time=50s and then retards at a rate of 2m/s^{2 }to come to rest, calculate dis†an ce travelled by body |
| Answer» body moves with accelaration of 1m/s^2 for time=5s and then moves at cons†an t velocity for time=50s and then retards at a rate of 2m/s^{2 }to come to rest, calculate dis†an ce travelled by body | |
| 1893. |
When 1019 electrons are removed from a neutral metal plate, the electric charge on it becomes |
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Answer» When 1019 electrons are removed from a neutral metal plate, the electric charge on it becomes |
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| 1894. |
The heating effect of electric current depends on: |
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Answer» The heating effect of electric current depends on: |
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| 1895. |
9. The approximate change in the volume of a cube of side x metres caused byincreasing the side by 3% is(A) 0.06x3m* (B) 0.6x3 m3 (C) 0.09 x3 m3 (D) 0.9x3m3 |
| Answer» 9. The approximate change in the volume of a cube of side x metres caused byincreasing the side by 3% is(A) 0.06x3m* (B) 0.6x3 m3 (C) 0.09 x3 m3 (D) 0.9x3m3 | |
| 1896. |
Heating effect of electric current is used in___. |
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Answer» Heating effect of electric current is used in |
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| 1897. |
is XeOF4 diamagnetic?how? |
| Answer» is XeOF4 diamagnetic?how? | |
| 1898. |
24. V1 litre of Solution A( Resistance=50 ohm) is mixed with V2 litre of Solution B(Resistance=100 ohm), Resistance of final solution is 80 ohm then V2/V1 will be (using same cell)? |
| Answer» 24. V1 litre of Solution A( Resistance=50 ohm) is mixed with V2 litre of Solution B(Resistance=100 ohm), Resistance of final solution is 80 ohm then V2/V1 will be (using same cell)? | |
| 1899. |
If a mass of a body increases by 10% and the velocity decereases with 10%. Find the % change in bod |
| Answer» If a mass of a body increases by 10% and the velocity decereases with 10%. Find the % change in bod | |
| 1900. |
The vapour density of a mixture of NO_2 and N_2O_4 is 39 at 25^° C. What is the mass of NO_2 present in 100 g of the mixture? ( 1)17.9 g (2) 8.4 g (3) 33.2 g (4) 66.4 g |
| Answer» The vapour density of a mixture of NO_2 and N_2O_4 is 39 at 25^° C. What is the mass of NO_2 present in 100 g of the mixture? ( 1)17.9 g (2) 8.4 g (3) 33.2 g (4) 66.4 g | |
