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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.
| 6551. |
Why does a bulb when connected to a battery glows but not the wire connecting the two? |
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Answer» Why does a bulb when connected to a battery glows but not the wire connecting the two? |
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| 6552. |
Any body that has mass attracts every other body towards its centre. So why does any object around us not get attracted towards us. For eg. Why does my friend not attract towards me. |
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Answer» Any body that has mass attracts every other body towards its centre. So why does any object around us not get attracted towards us. For eg. Why does my friend not attract towards me. |
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| 6553. |
Why does a rubber sucker get stick to a surface ???? |
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Answer» Why does a rubber sucker get stick to a surface ???? |
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| 6554. |
Question 4 (e) Shooting stars are actually not _________. |
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Answer» Question 4 (e) Shooting stars are actually not _________. |
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| 6555. |
How does lightning occur in clouds? |
| Answer» How does lightning occur in clouds? | |
| 6556. |
Is there a possibility of life on Mars? |
| Answer» Is there a possibility of life on Mars? | |
| 6557. |
Which of the following objects/methods should we use to make the measurement of this object? |
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Answer» Which of the following objects/methods should we use to make the measurement of this object?
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| 6558. |
If LED glows but bulb does not glow while testing a liquid for passage of electric current, it might mean |
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Answer» If LED glows but bulb does not glow while testing a liquid for passage of electric current, it might mean |
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| 6559. |
What are magnetic flux and magnetic flux density? |
| Answer» What are magnetic flux and magnetic flux density? | |
| 6560. |
At STP, 0.50 mol H2 gas and 1.0 mol He gas |
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Answer» At STP, 0.50 mol H2 gas and 1.0 mol He gas
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| 6561. |
Two horizontal forces are acting on a block placed on a frictionless surface: 3 N towards the left and 5 N towards the right. Given the block is moving to the left with a constant speed of 5 m/s, what additional force do you need to apply to it? |
| Answer» Two horizontal forces are acting on a block placed on a frictionless surface: 3 N towards the left and 5 N towards the right. Given the block is moving to the left with a constant speed of 5 m/s, what additional force do you need to apply to it? | |
| 6562. |
Which of the following choices defines gravitational force quantitatively? |
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Answer» Which of the following choices defines gravitational force quantitatively? |
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| 6563. |
Name the characteristic of sound related to its frequency. |
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Answer» Name the characteristic of sound related to its frequency. |
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| 6564. |
An ion has a charge whereas an atom does not. So what can an ion do that an atom can't. And also how does the ion do that ? |
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Answer» An ion has a charge whereas an atom does not. So what can an ion do that an atom can't. And also how does the ion do that ? |
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| 6565. |
A body of dimensions 2m×3m×4m is acted upon by a force of 50 N on the top surface (2m×3m). The pressure due to the force on that surface is |
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Answer» A body of dimensions 2m×3m×4m is acted upon by a force of 50 N on the top surface (2m×3m). The pressure due to the force on that surface is |
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| 6566. |
Why sometimes the moon is seen during day? |
| Answer» Why sometimes the moon is seen during day? | |
| 6567. |
Assertion (A): Skiers use short flat skies to slide over the snow. Reason (R): They can slide easily on the snow because larger the area of contact, the lesser will be the pressure on the snow. |
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Answer» Assertion (A): Skiers use short flat skies to slide over the snow. |
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| 6568. |
An object is projected so that it just clears two walls of height 7.5 m and with separation 50 m from each other. If the time passing between the walls is 2.5 s, the range of the projectile will be ..... (g = 10 m/s^2 a) 35 m B) 70 m C) 140 m D) 57.5 m |
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Answer» An object is projected so that it just clears two walls of height 7.5 m and with separation 50 m from each other. If the time passing between the walls is 2.5 s, the range of the projectile will be ..... (g = 10 m/s^2 a) 35 m B) 70 m C) 140 m D) 57.5 m |
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| 6569. |
Why solar storm occurs? |
| Answer» Why solar storm occurs? | |
| 6570. |
When we are touching anything actually because of electrostatic force , how are the finger prints formed on any surface? |
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Answer» When we are touching anything actually because of electrostatic force , how are the finger prints formed on any surface? |
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| 6571. |
When a body is immersed in a fluid, it undergoes an apparent loss in weight. Why? |
| Answer» When a body is immersed in a fluid, it undergoes an apparent loss in weight. Why? | |
| 6572. |
An incident ray makes an angle of 75∘ with the surface of a plane mirror. What will be the angle of reflection? |
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Answer» An incident ray makes an angle of 75∘ with the surface of a plane mirror. What will be the angle of reflection? |
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| 6573. |
When a plastic scale rubbed on dry hair is kept close to small paper pieces, it attracts the paper pieces. When the rubbed portion of scale is touched with hand, the pen looses attractive nature. Give reason for this. |
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Answer» When a plastic scale rubbed on dry hair is kept close to small paper pieces, it attracts the paper pieces. When the rubbed portion of scale is touched with hand, the pen looses attractive nature. Give reason for this. |
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| 6574. |
To break a wire of 1 mm radius a force of 10 N is required. Find the force required to break a wire of 3mm radius. |
| Answer» To break a wire of 1 mm radius a force of 10 N is required. Find the force required to break a wire of 3mm radius. | |
| 6575. |
Question 9 Two blocks of iron of different masses are kept on a cemented floor as shown in the figure. Which one of them would require a larger force to move it from the rest position? |
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Answer» Question 9 Two blocks of iron of different masses are kept on a cemented floor as shown in the figure. Which one of them would require a larger force to move it from the rest position? 
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| 6576. |
Consider the following statements: Statement 1: The friction is caused by the interlocking of irregularities in the two surfaces. Statement 2: The force of friction will increase if the two surfaces are pressed harder. Choose the correct option: |
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Answer» Consider the following statements: |
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| 6577. |
The sensation of Frequency is called: |
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Answer» The sensation of Frequency is called: |
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| 6578. |
If a bar magnet is cut lengthwise into two parts, how many poles will be formed? |
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Answer» If a bar magnet is cut lengthwise into two parts, how many poles will be formed? |
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| 6579. |
why does the worn anr tear of shoes happen |
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Answer» why does the worn anr tear of shoes happen |
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| 6580. |
A cathode is _________ charged. |
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Answer» A cathode is _________ charged. |
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| 6581. |
The colours of a rainbow are labelled as ___ . |
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Answer» The colours of a rainbow are labelled as |
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| 6582. |
A force F is applied to a stationary block as shown below. What is the direction of frictional force acting on the block? |
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Answer» A force F is applied to a stationary block as shown below. |
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| 6583. |
In an electric bell, striker is attracted by a/an__________. |
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Answer» In an electric bell, striker is attracted by a/an__________. |
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| 6584. |
In which of the following cases, friction plays a useful role? (1) Lighting a matchbox (2) Playing snooker (3) Writing on a black board. |
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Answer» In which of the following cases, friction plays a useful role? |
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| 6585. |
Why can't sound travel in vacuum |
| Answer» Why can't sound travel in vacuum | |
| 6586. |
which Scientist proved earth rotating around sun |
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Answer» which Scientist proved earth rotating around sun |
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| 6587. |
Snell’s law of refraction is given by; |
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Answer» Snell’s law of refraction is given by; |
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| 6588. |
The additive added to the gasoline mixture to prevent knocking sound of engine is ___ |
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Answer» The additive added to the gasoline mixture to prevent knocking sound of engine is ___ |
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| 6589. |
The moment of force due to a force of 10 N acting about a point O is 5 Nm. Calculate the distance of the point of application of the force from the point O. |
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Answer» The moment of force due to a force of 10 N acting about a point O is 5 Nm. Calculate the distance of the point of application of the force from the point O. |
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| 6590. |
The minimum distance between the object and the image formed by a concave mirror when the object is placed at C is equal to ___. |
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Answer» The minimum distance between the object and the image formed by a concave mirror when the object is placed at C is equal to ___. |
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| 6591. |
The time taken for 10 oscillations is 1 s. The frequency of the wave is: |
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Answer» The time taken for 10 oscillations is 1 s. The frequency of the wave is: |
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| 6592. |
The phenomenon of multiple reflections is the working principle of which object? |
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Answer» The phenomenon of multiple reflections is the working principle of which object? |
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| 6593. |
Two sounds in a medium are having wavelengths 1.3 m and 3.9 m. A person listens to these sounds. What difference would the listener feel? |
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Answer» Two sounds in a medium are having wavelengths 1.3 m and 3.9 m. A person listens to these sounds. What difference would the listener feel? |
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| 6594. |
In the given set up resistors A, B & C are of resistance 1 ohm each. Find the current through resistor A and Potential difference across it |
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Answer»
In the given set up resistors A, B & C are of resistance 1 ohm each. Find the current through resistor A and Potential difference across it |
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| 6595. |
Which force is responsible for raising our body hair when we try to take off a terylene or polyester shirt in the dry weather? |
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Answer» Which force is responsible for raising our body hair when we try to take off a terylene or polyester shirt in the dry weather? |
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| 6596. |
The change in converging power of an eye-lens is caused by the action of: (a) iris (b) ciliary muscles (c) optic nerve (d) retina |
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Answer» The change in converging power of an eye-lens is caused by the action of: (a) iris (b) ciliary muscles (c) optic nerve (d) retina |
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| 6597. |
An object is put one by one in three liquids having different densities. The object floats with 19, 211 and 37 parts of their volumes outside the liquid surface in liquids of densities d1, d2 and d3 respectively. Which of the following statement is correct? |
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Answer» An object is put one by one in three liquids having different densities. The object floats with 19, 211 and 37 parts of their volumes outside the liquid surface in liquids of densities d1, d2 and d3 respectively. Which of the following statement is correct? |
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| 6598. |
Which of the options is the correct formula to convert Celsius to Fahrenheit? |
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Answer» Which of the options is the correct formula to convert Celsius to Fahrenheit? |
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| 6599. |
Which of these do you think uses less electrical energy - electric bulb or LED? Ans) LED will use very little electrical energy .In an electric bulb most of the electrical energy gets converted into heat energy and very little light energy is given out . Whereas in LED more light energy is given out as compared to electric bulb and little heat energy is produced. Could you please check my answer. |
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Answer» Which of these do you think uses less electrical energy - electric bulb or LED? Ans) LED will use very little electrical energy .In an electric bulb most of the electrical energy gets converted into heat energy and very little light energy is given out . Whereas in LED more light energy is given out as compared to electric bulb and little heat energy is produced. Could you please check my answer. |
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| 6600. |
How does a hot air balloon able to fly in the air,and which force is applied on it? |
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Answer» How does a hot air balloon able to fly in the air,and which force is applied on it? |
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What is the direction of frictional force acting on the block?