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This section includes 7 InterviewSolutions, each offering curated multiple-choice questions to sharpen your Current Affairs knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
After suffering $2 billion in losses and 25,000 layoffs, the nation’s semiconductor industry, which makes chips that run everything from computers and spy satellites to dishwashers, appears to have made a long-awaited recovery. (A) computers and spy satellites to dishwashers, appears to have (B) computers, spy satellites, and dishwashers, appears having (C) computers, spy satellites, and dishwashers, appears that it has (D) computers and spy satellites to dishwashers, appears that it has (E) computers and spy satellites as well as dishwashers, appears to have ___ |
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Answer» After suffering $2 billion in losses and 25,000 layoffs, the nation’s semiconductor industry, which makes chips that run everything from computers and spy satellites to dishwashers, appears to have made a long-awaited recovery. (A) computers and spy satellites to dishwashers, appears to have (B) computers, spy satellites, and dishwashers, appears having (C) computers, spy satellites, and dishwashers, appears that it has (D) computers and spy satellites to dishwashers, appears that it has (E) computers and spy satellites as well as dishwashers, appears to have |
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| 2. |
When a battery is connected to a closed circuit , charge flow in the circuit almost instanteously . Explain |
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Answer» When a battery is connected to a closed circuit , charge flow in the circuit almost instanteously . Explain |
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| 3. |
What does A, B and C stand for the setup of a lead-acid accumulator? |
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Answer» What does A, B and C stand for the setup of a lead-acid accumulator?
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| 4. |
When can we use natural gas as fuel? |
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Answer» When can we use natural gas as fuel? |
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| 5. |
Relation between torque and angular momentum is similar to the relation between |
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Answer» Relation between torque and angular momentum is similar to the relation between |
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| 6. |
The distance between pole of the mirror and the centre of curvature is |
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Answer» The distance between pole of the mirror and the centre of curvature is |
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| 7. |
The frequencies of which of the following are equal? |
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Answer» The frequencies of which of the following are equal? |
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| 8. |
The liquid bio-fuels used for transportation are____. |
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Answer» The liquid bio-fuels used for transportation are____. |
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| 9. |
Mohan obtained a sharp inverted image of a distant tree on the screen behind the lens. He then moved the screen and tried to look through lens in the direction of the object. He would see: |
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Answer» Mohan obtained a sharp inverted image of a distant tree on the screen behind the lens. He then moved the screen and tried to look through lens in the direction of the object. He would see: |
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| 10. |
Arun is travelling with his friends in a car. The car suddenly stops due to some problem in the engine. If Arun and his friends apply a force of 1000 N to drag the car to the nearest garage that is 1.2 km from that place, determine the total power required if the dragging time is 20 minutes. |
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Answer» Arun is travelling with his friends in a car. The car suddenly stops due to some problem in the engine. If Arun and his friends apply a force of 1000 N to drag the car to the nearest garage that is 1.2 km from that place, determine the total power required if the dragging time is 20 minutes. |
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| 11. |
In an electric motor, which of the following remains fixed and which rotates with the coil? Commutator; Brush |
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Answer» In an electric motor, which of the following remains fixed and which rotates with the coil? Commutator; Brush |
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| 12. |
A resistance of 20 ohms has a current of 2 amperes flowing in it. What potential difference is there between its ends? |
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Answer» A resistance of 20 ohms has a current of 2 amperes flowing in it. What potential difference is there between its ends? |
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| 13. |
A ray of light after refraction through a lens emerges parallel to the principal axis of the lens. The incident ray passes through : (a) its optical centre (b) its first focus (c) its second focus (d) the centre of curvature of the first surface. |
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Answer» A ray of light after refraction through a lens emerges parallel to the principal axis of the lens. The incident ray passes through : (a) its optical centre (b) its first focus (c) its second focus (d) the centre of curvature of the first surface. |
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| 14. |
(a) Classify the following into renewable and non-renewable sources of energy: Coal, Wind, Tides, Petroleum, Wood, Natural gas (b) What is the basis of above classification? |
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Answer» (a) Classify the following into renewable and non-renewable sources of energy: |
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| 15. |
Which of the following options correctly identify the reason behind the formation of rainbows? |
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Answer»
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| 16. |
A light ray is incident along normal of AB as shown below. If the critical angle is 60∘, the angle of the refracted ray is . |
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Answer» A light ray is incident along normal of AB as shown below. If the critical angle is 60∘, the angle of the refracted ray is |
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| 17. |
An Electric toaster draws current 8 A in a circuit with source of voltage 220 V. It is used for 2 h. Find the cost of operating the toaster if the cost of electrical energy is Rs. 4.50 per k Wh. |
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Answer» An Electric toaster draws current 8 A in a circuit with source of voltage 220 V. It is used for 2 h. Find the cost of operating the toaster if the cost of electrical energy is Rs. 4.50 per k Wh. |
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| 18. |
In the figure shown, the total resistance between A and B is |
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Answer» In the figure shown, the total resistance between A and B is |
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| 19. |
Explain with the help of diagram why a pencil partly immersed in water appears to be bent at the water surface. |
| Answer» Explain with the help of diagram why a pencil partly immersed in water appears to be bent at the water surface. | |
| 20. |
___is used as fuel in a nuclear reactor. |
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Answer» |
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| 21. |
How is energy conserved when power is stepped up from 11kv to 132kv? |
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Answer» How is energy conserved when power is stepped up from 11kv to 132kv? |
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| 22. |
Write an activity toshow the shape of magnetic field lines around a straight line conductor |
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Answer» Write an activity toshow the shape of magnetic field lines around a straight line conductor |
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| 23. |
Explain why array passing through centre of curvature of a concave mirror reflected back to its same path |
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Answer» Explain why array passing through centre of curvature of a concave mirror reflected back to its same path |
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| 24. |
A ray of light suffers refraction through an equilateral prism. The deviation produced by the prism does not depend on the : (a) angle of incidence (b) colour of light (a) material of prism (b) size of prism |
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Answer» A ray of light suffers refraction through an equilateral prism. The deviation produced by the prism does not depend on the : (a) angle of incidence (b) colour of light (a) material of prism (b) size of prism |
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| 25. |
A vessel contains 1.5L of gas at a particular temperature and 60 cm Hg pressure. Keeping the temperature constant if the pressure of air is increased to 80 cm Hg, then what will be the volume of that gas? |
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Answer» A vessel contains 1.5L of gas at a particular temperature and 60 cm Hg pressure. Keeping the temperature constant if the pressure of air is increased to 80 cm Hg, then what will be the volume of that gas? |
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| 26. |
Identify the circuit (Figure) in which the electrical components have been properly connected. |
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Answer» Identify the circuit (Figure) in which the electrical components have been properly connected. |
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| 27. |
The animal which does not have eyes that look sideways is : (a) Horse (b) Chicken (c) Lion (d) Fish |
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Answer» The animal which does not have eyes that look sideways is : (a) Horse (b) Chicken (c) Lion (d) Fish |
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| 28. |
State three differences between the heat capacity and specific heat capacity. |
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Answer» State three differences between the heat capacity and specific heat capacity. |
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| 29. |
List out the reason from the following for melting of a fuse wire. |
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Answer» List out the reason from the following for melting of a fuse wire. |
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| 30. |
Where in nature can you find evidence that white sunlight may be made of different colours ? |
| Answer» Where in nature can you find evidence that white sunlight may be made of different colours ? | |
| 31. |
Earth is continuously pulling the moon towards its centre, still, it does not fall to the earth. Why? |
| Answer» Earth is continuously pulling the moon towards its centre, still, it does not fall to the earth. Why? | |
| 32. |
Which of the following is an example of homogeneous catalysis? |
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Answer» Which of the following is an example of homogeneous catalysis? |
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| 33. |
Which of the following is not a cause for the depletion of underground water level? |
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Answer» Which of the following is not a cause for the depletion of underground water level? |
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| 34. |
A solid at initial temperature 0 ∘C is heated. A graph showing changes to the heat supplied is given below. What is the mass of solid substance? [Specific heat capacity of solid: 500 J/kgK] |
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Answer» A solid at initial temperature 0 ∘C is heated. A graph showing changes to the heat supplied is given below. What is the mass of solid substance? [Specific heat capacity of solid: 500 J/kgK]
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| 35. |
Biodiversity hotspots are ___. |
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Answer» Biodiversity hotspots are ___. |
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| 36. |
Draw a ray diagram to show the formation of image of an object kept in front of a convex mirror. State three characteristics of the image. |
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Answer» Draw a ray diagram to show the formation of image of an object kept in front of a convex mirror. State three characteristics of the image. |
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| 37. |
Which of the following are the products of coal? 1) Coal tar 2)Petrol 3) Coal gas 4) Ammonical liquor 5)Paraffin wax 6) Coke |
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Answer» Which of the following are the products of coal? 1) Coal tar 2)Petrol 3) Coal gas 4) Ammonical liquor 5)Paraffin wax 6) Coke |
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| 38. |
Which of the following changes the strength of the magnetic field created by an electromagnet |
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Answer» Which of the following changes the strength of the magnetic field created by an electromagnet |
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| 39. |
Explain right-hand thumb rule and left-hand thumb rule. |
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Answer» Explain right-hand thumb rule and left-hand thumb rule. |
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| 40. |
What is the unit for measuring data transmission speed? |
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Answer» What is the unit for measuring data transmission speed? |
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| 41. |
Q. Using mirror formula show that In the plane mirror both object and image distance are the same and image is virtual and erect |
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Answer» Q. Using mirror formula show that In the plane mirror both object and image distance are the same and image is virtual and erect |
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| 42. |
Is it mass or weight taht affects the kinetic energy of a body ? If it is mass then a heavier ball should land first on the ground than a lighter ball dropped from a height, even in the anti gravity room?? |
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Answer» Is it mass or weight taht affects the kinetic energy of a body ? If it is mass then a heavier ball should land first on the ground than a lighter ball dropped from a height, even in the anti gravity room?? |
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| 43. |
Why voltmeter is always connected in parallel? |
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Answer» Why voltmeter is always connected in parallel? |
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| 44. |
A torch bulb is rated 2.5 volts and 750 mA. Calculate:(i)it's resistance (ii) it's power (iii) energy consumed if this bulb is lighted for four hours. |
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Answer» A torch bulb is rated 2.5 volts and 750 mA. Calculate:(i)it's resistance (ii) it's power (iii) energy consumed if this bulb is lighted for four hours. |
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| 45. |
Which of the following forest products is used to make beedis for paper mills? |
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Answer» Which of the following forest products is used to make beedis for paper mills? |
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| 46. |
Two resistors when connected in parallel give resultant value of 2 Ω, when connected in series the value becomes 8 Ω , the resistance of each resistor is |
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Answer» Two resistors when connected in parallel give resultant value of 2 Ω, when connected in series the value becomes 8 Ω , the resistance of each resistor is |
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| 47. |
__ leaves are used to make bidis. |
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Answer» |
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| 48. |
If the accelerating voltage of the Coolidge tube setup is increased two times, the kinetic energy of an electron reaching anode will get |
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Answer» If the accelerating voltage of the Coolidge tube setup is increased two times, the kinetic energy of an electron reaching anode will get |
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| 49. |
The defect of vision in which a person is able to see nearby objects clearly, but not far objects is called: |
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Answer» The defect of vision in which a person is able to see nearby objects clearly, but not far objects is called: |
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| 50. |
Question 4(iii). Least Polluting fuel for the vehicle is ___________? |
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Answer» Question 4(iii). Least Polluting fuel for the vehicle is |
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