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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.
| 2751. |
A Young's double slit experiment is being performed by illuminating the two slits with a monochromatic source of light.When a glass plate of thickness 24 μm is placed in front of one of the slits, the entire pattern shifts through a distance of 5 mm. What should be the thickness of the glass plate made of the same material so that the pattern shifts by 15 mm? |
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Answer» A Young's double slit experiment is being performed by illuminating the two slits with a monochromatic source of light. |
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| 2752. |
State two ways of increasing the strength of an electro Magnet |
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Answer» State two ways of increasing the strength of an electro Magnet |
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| 2753. |
an object is placed at a dis†an ce of x metres from a plane mirror and Behind the mirror there is a wall at a dis†an ce of x metres from the object .calculate the minimum height of the mirror so that the object can see the full imange of the wall in the mirror? |
| Answer» an object is placed at a dis†an ce of x metres from a plane mirror and Behind the mirror there is a wall at a dis†an ce of x metres from the object .calculate the minimum height of the mirror so that the object can see the full imange of the wall in the mirror? | |
| 2754. |
At 300 K, the vapour pressure of an ideal solution containing 3 moles of A and 2 moles of B is 600 torr. At the same temperature, if 1.5 moles of A and 0.5 moles of C (non volatile ) are added to this solution the vapour pressure of solution increases by 30 torr. What is the value of P∘B (in Torr)? |
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Answer» At 300 K, the vapour pressure of an ideal solution containing 3 moles of A and 2 moles of B is 600 torr. At the same temperature, if 1.5 moles of A and 0.5 moles of C (non volatile ) are added to this solution the vapour pressure of solution increases by 30 torr. What is the value of P∘B (in Torr)? |
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| 2755. |
ntTwo conductors of same shape and size .One of copper and the other of aluminum(less conducting)are placed in uniform electricfield .The charges induced in aluminum would be?n |
| Answer» ntTwo conductors of same shape and size .One of copper and the other of aluminum(less conducting)are placed in uniform electricfield .The charges induced in aluminum would be?n | |
| 2756. |
The length of a wire is increased by 0.3%. Find the9percentage increase in its volume, if Poisson'sratio of wire material is 0.5(1) 0.3%(2) 0.9%(3) 0.27%(4) Zero%is plaoedof |
| Answer» The length of a wire is increased by 0.3%. Find the9percentage increase in its volume, if Poisson'sratio of wire material is 0.5(1) 0.3%(2) 0.9%(3) 0.27%(4) Zero%is plaoedof | |
| 2757. |
A slightly divergent beam of charged particles accelerated by a potential difference v propagates from a point a along the axis of a solenoid.the beam is brought into focus at a distance l from the point a at two successive values of magnetic induction b1 and b2.find the specific charge q/m of the particles. |
| Answer» A slightly divergent beam of charged particles accelerated by a potential difference v propagates from a point a along the axis of a solenoid.the beam is brought into focus at a distance l from the point a at two successive values of magnetic induction b1 and b2.find the specific charge q/m of the particles. | |
| 2758. |
Why does a man weigh less on the moon as on the Earth? |
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Answer» Why does a man weigh less on the moon as on the Earth? |
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| 2759. |
How to calculate density |
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Answer» How to calculate density |
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| 2760. |
A bullet of mass 100 g was shot with a velocity of 1000 km/hr towards the target. What would be its kinetic energy? Choose the closest valued option. |
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Answer» A bullet of mass 100 g was shot with a velocity of 1000 km/hr towards the target. What would be its kinetic energy? |
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| 2761. |
the difference between the Apparent frequency of a source of sound as perceived by the observer during its approach and recession is 2% of the frequency of the source. Is the speed of sound in air is 300 metre per second, what is the velocity of source? |
| Answer» the difference between the Apparent frequency of a source of sound as perceived by the observer during its approach and recession is 2% of the frequency of the source. Is the speed of sound in air is 300 metre per second, what is the velocity of source? | |
| 2762. |
Explain uniform motion with the help of an example. [3 MARKS] |
| Answer» Explain uniform motion with the help of an example. [3 MARKS] | |
| 2763. |
Can a body be luminous at some point of time and non luminous at others? |
| Answer» Can a body be luminous at some point of time and non luminous at others? | |
| 2764. |
To and fro motion of an object is also known as: |
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Answer» To and fro motion of an object is also known as: |
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| 2765. |
When we hold a mirror in sunlight, we see a bright patch of light on the wall opposite to the mirror. Why does this happen? |
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Answer» When we hold a mirror in sunlight, we see a bright patch of light on the wall opposite to the mirror. Why does this happen? |
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| 2766. |
Which of the following energy conversions take place in a torch? |
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Answer» Which of the following energy conversions take place in a torch? |
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| 2767. |
How and why electrons moves inside conductor , when conductor is connected with cell or battery ? |
| Answer» How and why electrons moves inside conductor , when conductor is connected with cell or battery ? | |
| 2768. |
why speed ofsound in Al is greater than speed of sound in Fe? |
| Answer» why speed ofsound in Al is greater than speed of sound in Fe? | |
| 2769. |
A boy weighing 600 N is in a lift. If the lift experiences a breakdown and starts falling freely under the action of gravity, what would be the apparent weight of the boy in the lift? |
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Answer» A boy weighing 600 N is in a lift. If the lift experiences a breakdown and starts falling freely under the action of gravity, what would be the apparent weight of the boy in the lift? |
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| 2770. |
Do you think an electromagnet can be used for separating plastic bags from a garbage heap? Explain. |
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Answer» Do you think an electromagnet can be used for separating plastic bags from a garbage heap? Explain. |
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| 2771. |
what is the numerical value of force of attraction and interparticle space to differentiate between solids , liquids and gases |
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Answer» what is the numerical value of force of attraction and interparticle space to differentiate between solids , liquids and gases |
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| 2772. |
What is the orientation of the image formed by a pinhole camera? |
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Answer» What is the orientation of the image formed by a pinhole camera? |
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| 2773. |
List the properties of magnetic field lines. |
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Answer» List the properties of magnetic field lines. |
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| 2774. |
While jogging on a straight road, Ann covers 300 m towards east in 2 minutes 50 seconds. Then, she turned around and jogs for 1 minute covering a distance of 100 m. Calculate average speed and average velocity. |
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Answer» While jogging on a straight road, Ann covers 300 m towards east in 2 minutes 50 seconds. Then, she turned around and jogs for 1 minute covering a distance of 100 m. Calculate average speed and average velocity. |
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| 2775. |
the time period of vibration of a uniform disc of mass M and radius R about an axis passing perpendicualr to the plane of disc and passing from a point at a distance R/2 from the centre of disc is? |
| Answer» the time period of vibration of a uniform disc of mass M and radius R about an axis passing perpendicualr to the plane of disc and passing from a point at a distance R/2 from the centre of disc is? | |
| 2776. |
A Pneumatic cylinder has a bore of 200 mm and a piston rod diameter of 140 mm. For an extend speed of 5 m/min.The flow rate from the full bore end on retract is |
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Answer» A Pneumatic cylinder has a bore of 200 mm and a piston rod diameter of 140 mm. For an extend speed of 5 m/min. |
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| 2777. |
Which of the following is used to protect home appliances from high voltages/currents? |
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Answer» Which of the following is used to protect home appliances from high voltages/currents? |
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| 2778. |
Question 3Point ( 0, -7) liesThinking process(i) Firstly, check whether any coordinate of the given point is zero or not.(a) If x-coordinate is zero and y-coordinate is non-zero, then the point lies on the y-axis.(b) If y-coordinate is zero and x-coordinate is non-zero, then the point lies on the x-axis.(c) If x-coordinate and y-coordinate are zero, the point lies on the origin ( or on both the axes.)(ii) If none of the coordinates is zero, then the point lies in any one of the four quadrants.A) On the x-axisB) In the second quadrantC) On the y-axisD) In the fourth quadrant |
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Answer» Question 3 Point ( 0, -7) lies Thinking process |
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| 2779. |
What is electricity? How do some appliances run without electricity? |
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Answer» What is electricity? How do some appliances run without electricity? |
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| 2780. |
+2 Vectors A. B andare such that A B= 0 andA C=0.Then the vector parallel to A is(1) B and C(2) AxB(3) B+C(4) BxC |
| Answer» +2 Vectors A. B andare such that A B= 0 andA C=0.Then the vector parallel to A is(1) B and C(2) AxB(3) B+C(4) BxC | |
| 2781. |
If it so happens that a diamagnetic subs†an ce hanged from roof with the help of a string and a magnetic field is suddenly switched on,and the diamagnetic subs†an ce jumps out of the field gaining gravitational potential energy,then who does the necessary work against gravity to increase the gravitational potential of the body? |
| Answer» If it so happens that a diamagnetic subs†an ce hanged from roof with the help of a string and a magnetic field is suddenly switched on,and the diamagnetic subs†an ce jumps out of the field gaining gravitational potential energy,then who does the necessary work against gravity to increase the gravitational potential of the body? | |
| 2782. |
A particle is moving from point A to point B and covers the entire distance of 10 km in just 2 minutes. What would be the speed at which the particle was traveling? |
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Answer» A particle is moving from point A to point B and covers the entire distance of 10 km in just 2 minutes. What would be the speed at which the particle was traveling? |
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| 2783. |
A force of 10 n holds an ideal spring with 20 n/m spring constant in compression. the potential energy stored in the spring is. |
| Answer» A force of 10 n holds an ideal spring with 20 n/m spring constant in compression. the potential energy stored in the spring is. | |
| 2784. |
What is heat |
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Answer» What is heat |
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| 2785. |
A man walks from his home to office in 10 mins and from office to home in 15 mins. The distance between the house and home = d. find out his average velocity. |
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Answer» A man walks from his home to office in 10 mins and from office to home in 15 mins. The distance between the house and home = d. find out his average velocity.
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| 2786. |
Consider the following situation.The car appears to be in motion with respect to |
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Answer» Consider the following situation.
The car appears to be in motion with respect to |
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| 2787. |
A long wire will have__________ for the same cross-sectional area. |
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Answer» A long wire will have__________ for the same cross-sectional area. |
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| 2788. |
In case of spring block system, we derived potential energy stored = 1/2 k x ^2But work done = energy stored and spring force = kx while elongation/compression is x So, work done = kx × x = kx^2But what is the conceptual mistake here? |
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Answer» In case of spring block system, we derived potential energy stored = 1/2 k x ^2 But work done = energy stored and spring force = kx while elongation/compression is x So, work done = kx × x = kx^2 But what is the conceptual mistake here? |
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| 2789. |
What is standard hydrogen electrode? |
| Answer» What is standard hydrogen electrode? | |
| 2790. |
What does a 5A rating on a fuse mean? |
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Answer» What does a 5A rating on a fuse mean? |
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| 2791. |
When a clock is viewed in a mirror, the needles exhibit a time which appears to be 8:20. Then, the actual time will be - |
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Answer» When a clock is viewed in a mirror, the needles exhibit a time which appears to be 8:20. Then, the actual time will be - |
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| 2792. |
What are the devices that work on the basis of atmospheric pressure? |
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Answer» What are the devices that work on the basis of atmospheric pressure? |
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| 2793. |
Is the frequency of oscillation of magnetic energy or electrostatic energy is same as that of charge in LC oscillator ? |
| Answer» Is the frequency of oscillation of magnetic energy or electrostatic energy is same as that of charge in LC oscillator ? | |
| 2794. |
Current flowing across the wire is varying with time as I=(2t+3t2)A.Calculate the charge flown in 5 seconds |
| Answer» Current flowing across the wire is varying with time as I=(2t+3t2)A.Calculate the charge flown in 5 seconds | |
| 2795. |
An infinitely long thin straight wire has uniform linear charge density of . Then, the magnitude of the electric intensity at a point 18 cm away is (Given ε0 = 8.8 × 10–12 C2 Nm–2) |
| Answer» An infinitely long thin straight wire has uniform linear charge density of . Then, the magnitude of the electric intensity at a point 18 cm away is (Given ε0 = 8.8 × 10–12 C2 Nm–2) | |
| 2796. |
33. When a magnet is divided in two part forms on broken side different pole it shold attract but it repulse . Why? |
| Answer» 33. When a magnet is divided in two part forms on broken side different pole it shold attract but it repulse . Why? | |
| 2797. |
why the object gains potential energy when it is kept at a height but has no potential energy when kept at ground |
| Answer» why the object gains potential energy when it is kept at a height but has no potential energy when kept at ground | |
| 2798. |
A source of wave produces 20 crest and 20 troughs in 0.2s. Find the frequency of the wave |
| Answer» A source of wave produces 20 crest and 20 troughs in 0.2s. Find the frequency of the wave | |
| 2799. |
2. A gas filled in an open container at 1 atm is heated from 27^° C to t^° C, so that 1/3 moles of the gas escapes out. Find the value of 't'. |
| Answer» 2. A gas filled in an open container at 1 atm is heated from 27^° C to t^° C, so that 1/3 moles of the gas escapes out. Find the value of 't'. | |
| 2800. |
if a charge Q is moved out of a Gaussian surface,will there be a change in electric flux through the surface? |
| Answer» if a charge Q is moved out of a Gaussian surface,will there be a change in electric flux through the surface? | |
