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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.
| 3651. |
The velocity-time graph of a train traveling between two stations is plotted below: Find the train's acceleration (in m s−2) in each of the time intervals OX, XY, and YZ respectively. |
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Answer» The velocity-time graph of a train traveling between two stations is plotted below: |
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| 3652. |
Why does Pole Star appear to be stationary in the sky? |
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Answer» Why does Pole Star appear to be stationary in the sky? |
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| 3653. |
A point object is moving with speed u. At a position spmewhere between 2F and F in front of a convex lens.the speed of its image is |
| Answer» A point object is moving with speed u. At a position spmewhere between 2F and F in front of a convex lens.the speed of its image is | |
| 3654. |
42.More about mesoscopic physics. It's scope and laws which govern it |
| Answer» 42.More about mesoscopic physics. It's scope and laws which govern it | |
| 3655. |
two subs†an ces A and B are present such that \lbrack A\rbrack=4\lbrack B\rbrack and half life of A is 5 minute and that of B is 15 minute if they start decaying at the same time following first order reaction how much time will the concentration of both of them equal |
| Answer» two subs†an ces A and B are present such that \lbrack A\rbrack=4\lbrack B\rbrack and half life of A is 5 minute and that of B is 15 minute if they start decaying at the same time following first order reaction how much time will the concentration of both of them equal | |
| 3656. |
What precautions would you take if lightning occurs while you are outside the house? |
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Answer» What precautions would you take if lightning occurs while you are outside the house? |
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| 3657. |
An object moves with a uniform velocity when the net force acting on it is___ . |
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Answer» An object moves with a uniform velocity when the net force acting on it is |
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| 3658. |
Question 17.4(a) Find out the position of the image of an object situated at A in the plane mirror (b) Can Paheli at B see this image?(c) Can Boojho at C see this image?(d) When Paheli moves from B to C, where does the image of A move? |
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Answer» Question 17.4 (a) Find out the position of the image of an object situated at A in the plane mirror (b) Can Paheli at B see this image? (c) Can Boojho at C see this image? (d) When Paheli moves from B to C, where does the image of A move?  |
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| 3659. |
What are the three parts of the ear? |
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Answer» What are the three parts of the ear? |
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| 3660. |
If y represents pressure and x represents velocity gradient then the dimensions of d^2y / dx^2 are |
| Answer» If y represents pressure and x represents velocity gradient then the dimensions of d^2y / dx^2 are | |
| 3661. |
The materials that allow the flow of heat through them easily are known as: |
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Answer» The materials that allow the flow of heat through them easily are known as: |
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| 3662. |
A vehicle is moving on a road with an acceleration of 20 m/s2. The frictional coefficient between the block of mass m and vehiclebso that the block does not fall downward i |
| Answer» A vehicle is moving on a road with an acceleration of 20 m/s2. The frictional coefficient between the block of mass m and vehiclebso that the block does not fall downward i | |
| 3663. |
A closed can of soda is thrown in the sea. After a certain depth the can starts getting crushed. What is the reason behind this phenomenon? If we take it to mount everest, what will happen? [3 MARKS] |
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Answer»
A closed can of soda is thrown in the sea. After a certain depth the can starts getting crushed. What is the reason behind this phenomenon? If we take it to mount everest, what will happen? [3 MARKS] |
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| 3664. |
A ray of light falling parallel to the principal axis on a convex mirror follows which of the following path? |
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Answer» A ray of light falling parallel to the principal axis on a convex mirror follows which of the following path?
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| 3665. |
A rod of length L is pivoted at one end and is rotated with a uniform angular velocity in a horizontal plane let T1 and T2 be the tensions at the points L/4 and 3L/ 4 from the pivoted ends |
| Answer» A rod of length L is pivoted at one end and is rotated with a uniform angular velocity in a horizontal plane let T1 and T2 be the tensions at the points L/4 and 3L/ 4 from the pivoted ends | |
| 3666. |
A capacitor of capacitance 6mf is charged to a potential of 150 V. It's potential falls to 90 V, when another capacitor is connected to it. Find the capacitance of the second capacitor and the amount of energy lost due to the connection. |
| Answer» A capacitor of capacitance 6mf is charged to a potential of 150 V. It's potential falls to 90 V, when another capacitor is connected to it. Find the capacitance of the second capacitor and the amount of energy lost due to the connection. | |
| 3667. |
Why does wavelength only change when source is moving and not when observor is moving? |
| Answer» Why does wavelength only change when source is moving and not when observor is moving? | |
| 3668. |
Why sky appears dark to an astronaut from the moon? |
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Answer» Why sky appears dark to an astronaut from the moon? |
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| 3669. |
find root of:-x^2-6-\lbrack x\rbrack |
| Answer» find root of:-x^2-6-\lbrack x\rbrack | |
| 3670. |
Can you plz tell something about different or very rare type of stars |
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Answer» Can you plz tell something about different or very rare type of stars |
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| 3671. |
Find out the temperature at which the Fahrenheit scale will give twice the reading to that of Celsius scale. |
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Answer» Find out the temperature at which the Fahrenheit scale will give twice the reading to that of Celsius scale. |
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| 3672. |
A monometer connected to a closed water tap reads 2.1 × 106 N/m2 and when water tap is opened the reading of monometer falls to 2 × 106 N/m2. The speed of flow of water is \lbrack Consider streamline flow\rbrack Options: a-10 m/s b- 20 m/s c- 10\sqrt2 m/s d-20\sqrt2 m/ |
| Answer» A monometer connected to a closed water tap reads 2.1 × 106 N/m2 and when water tap is opened the reading of monometer falls to 2 × 106 N/m2. The speed of flow of water is \lbrack Consider streamline flow\rbrack Options: a-10 m/s b- 20 m/s c- 10\sqrt2 m/s d-20\sqrt2 m/ | |
| 3673. |
Fill in the blanks. (a) The unit of pressure is ………… . (b) Ink rises into the ink dropper because of the ………… pressure acting on the surface of the ink in the bottle. (c) When the piston of a pump is pulled up, the pressure inside ………… . (d) The air pressure inside our body is equal to the ………… . |
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Answer» Fill in the blanks. (a) The unit of pressure is ………… . (b) Ink rises into the ink dropper because of the ………… pressure acting on the surface of the ink in the bottle. (c) When the piston of a pump is pulled up, the pressure inside ………… . (d) The air pressure inside our body is equal to the ………… . |
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| 3674. |
Sound waves cannot travel through: |
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Answer» Sound waves cannot travel through: |
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| 3675. |
Why and when quantization of charge can be ignored? |
| Answer» Why and when quantization of charge can be ignored? | |
| 3676. |
Two blocks A and B having masses 5kg and 3 kg are connected by a massless string and are placed on a horizontal plane as shown in figure . If B is pulled by 8N horizontally , then tension in string is |
| Answer» Two blocks A and B having masses 5kg and 3 kg are connected by a massless string and are placed on a horizontal plane as shown in figure . If B is pulled by 8N horizontally , then tension in string is | |
| 3677. |
A PC monitor is usually covered in dust because: |
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Answer» A PC monitor is usually covered in dust because: |
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| 3678. |
What is 'normal' in the reflection of light from a plane mirror? |
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Answer» What is 'normal' in the reflection of light from a plane mirror? |
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| 3679. |
Q. The work function of metal is 2.51eV its threshold frequency is? |
| Answer» Q. The work function of metal is 2.51eV its threshold frequency is? | |
| 3680. |
a satellite is moving with speed v in a circular orbit about the earth. an object of mass 2m is ejected from the satellite such that it just escapes from the gravitational pull of earth. at the time of ejection the kinetic energy of object is |
| Answer» a satellite is moving with speed v in a circular orbit about the earth. an object of mass 2m is ejected from the satellite such that it just escapes from the gravitational pull of earth. at the time of ejection the kinetic energy of object is | |
| 3681. |
Answer the following.(a) What is a special characteristic of the planet Mars ?(b) What are the types of galaxies ?(c) Which celestial bodies does a galaxy include ?(d) Name the different types of stars.(e) What are the types of comets and on what basis are they classified ?(f) What is the difference between meteors and meteorites ?(g) What are the characteristics of the planet Neptune ? |
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Answer» Answer the following. (a) What is a special characteristic of the planet Mars ? (b) What are the types of galaxies ? (c) Which celestial bodies does a galaxy include ? (d) Name the different types of stars. (e) What are the types of comets and on what basis are they classified ? (f) What is the difference between meteors and meteorites ? (g) What are the characteristics of the planet Neptune ? |
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| 3682. |
How is sound transmitted through different parts of the ear and how are we able to hear the sounds around us? |
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Answer» How is sound transmitted through different parts of the ear and how are we able to hear the sounds around us? |
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| 3683. |
How do you think you can help children who cannot see? |
| Answer» How do you think you can help children who cannot see? | |
| 3684. |
A person weighs 50 kg wt in air. He displaces 40 kg water when he swims keeping his body in the water. The weight he loses is |
| Answer» A person weighs 50 kg wt in air. He displaces 40 kg water when he swims keeping his body in the water. The weight he loses is | |
| 3685. |
An arrangement of three blocks is shown in figure.The string and pulley are ideal. There is no frictionbetween 6 kg block and ground. There is frictionbetween 5 kg and 6 kg block (u = 0.8). Themaximum value of mass m, such that the twoblocks (5 kg and 6 kg) will move together, is5 kg24.6 kgm(2) 22 kg(1) 44 kg(4) 4 kg(3) 40 kg |
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Answer» An arrangement of three blocks is shown in figure. The string and pulley are ideal. There is no friction between 6 kg block and ground. There is friction between 5 kg and 6 kg block (u = 0.8). The maximum value of mass m, such that the two blocks (5 kg and 6 kg) will move together, is 5 kg 24. 6 kg m (2) 22 kg (1) 44 kg (4) 4 kg (3) 40 kg |
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| 3686. |
1.What will be the partial derivative of any constant number like 4? |
| Answer» 1.What will be the partial derivative of any constant number like 4? | |
| 3687. |
A person gives 200000 cal. Of heat by evapouration of water from the skin . How much water has been lost? Latent heat of evapouration of water is 2.26 10 power 6 j/kg |
| Answer» A person gives 200000 cal. Of heat by evapouration of water from the skin . How much water has been lost? Latent heat of evapouration of water is 2.26 10 power 6 j/kg | |
| 3688. |
A body of mass 500 g which is initially at rest is acted upon by a force. The body moves a distance of 4 m in 2 s. The force applied is _____. |
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Answer» A body of mass 500 g which is initially at rest is acted upon by a force. The body moves a distance of 4 m in 2 s. The force applied is _____. |
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| 3689. |
Which of the following is incorrect? |
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Answer» Which of the following is incorrect? |
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| 3690. |
ntProve that the equilibrium of a charged particle under the action of electrostatic force alone can never be stable.n |
| Answer» ntProve that the equilibrium of a charged particle under the action of electrostatic force alone can never be stable.n | |
| 3691. |
The diagram below shows the difference of the liquid level in the two arms when the thistle funnel of the manometer is dipped into the beaker. Which of the following could explain this fact? |
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Answer» The diagram below shows the difference of the liquid level in the two arms when the thistle funnel of the manometer is dipped into the beaker. Which of the following could explain this fact?
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| 3692. |
Question 8Explain why a charged balloon is repelled by another charged balloon whereas an uncharged balloon is attracted by another charged balloon? |
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Answer» Question 8 |
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| 3693. |
Several electric bulbs designed to be used on a 220 volts electric supply line,are rated 10 volts.How many lamps can be connected in parallel with each other across the two wires of 220 volt line if the maximum allowable current is 5 ampere? |
| Answer» Several electric bulbs designed to be used on a 220 volts electric supply line,are rated 10 volts.How many lamps can be connected in parallel with each other across the two wires of 220 volt line if the maximum allowable current is 5 ampere? | |
| 3694. |
why is ε° called dielectric cons†an t |
| Answer» why is ε° called dielectric cons†an t | |
| 3695. |
The x-y plane is the boundary between two media . Medium-1 with z>0 has refractive index 2 and medium-2 with z |
| Answer» The x-y plane is the boundary between two media . Medium-1 with z>0 has refractive index 2 and medium-2 with z<0 has refractive index 3 . A ray of light in medium -1 given by the vector A=63i + 83j-10k is incident on the plane of separation. Than find the unit vector along refracted ray ? | |
| 3696. |
What are the hazards of noise pollution? How noise pollution can be minimized? |
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Answer» What are the hazards of noise pollution? How noise pollution can be minimized? |
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| 3697. |
Why is the dimensional formula of frequency [T^-1] |
| Answer» Why is the dimensional formula of frequency [T^-1] | |
| 3698. |
The main constituent of LPG is ______. |
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Answer» The main constituent of LPG is ______. |
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| 3699. |
Force between two identical short bar magnets whose centre are r metre apart is 4.8N when their axes are in the same line .If the separation is increased to 2r metre the force between them is reduced to |
| Answer» Force between two identical short bar magnets whose centre are r metre apart is 4.8N when their axes are in the same line .If the separation is increased to 2r metre the force between them is reduced to | |
| 3700. |
Materials which allow electric current to pass through them are called |
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Answer» Materials which allow electric current to pass through them are called |
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