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- Question
It is easier to roll a stone up a sloping road than to lift it vertical upwards because
Options- A. work done in rolling is more than in lifting
- B. work done in lifting the stone is equal to rolling it
- C. work done in both is same but the rate of doing work is less in rolling
- D. work done in rolling a stone is less than in lifting it
- Correct Answer
- work done in rolling a stone is less than in lifting it
- 1. Point A is at a lower electrical potential than point B. An electron between them on the line joining them will
Options- A. move towards A
- B. move towards B
- C. move at right angles to the line joining A and B
- D. remain at rest Discuss
- 2. Inside an aeroplane, flying at a high altitude,
Options- A. the pressure is the same as that outside
- B. normal atmospheric pressure is maintained by the use of air pumps
- C. the pressure inside is less than the pressure outside
- D. normal humidity and partial vacuum are maintained Discuss
- 3. In which of the following industries is mica as a raw material?
Options- A. Cement
- B. Glass and Pottery
- C. Iron and Steel
- D. Electrical Discuss
- 4. It is easier to roll a barrel full of coal tar than to pull it because
Options- A. the full weight of the barrel comes into play when it is pulled
- B. the rolling friction is much less than the sliding friction
- C. more surface area of the barrel is in contact with the road when it is pulled
- D. coal tar is a liquid and it flows in the barrel when it is rolled Discuss
- 5. Superconductors are substances which
Options- A. conduct electricity at low temperature
- B. offer high resistance to the flow of current
- C. offer no resistance to the flow of electricity
- D. conduct electricity at high temperatures Discuss
- 6. Rain is falling vertically downwards. To a man running east-wards, the rain will appear to be coming from
Options- A. east
- B. west
- C. northeast
- D. southeast Discuss
- 7. One should not connect a number of electrical appliances to the same power socket because
Options- A. this can damage the appliances due to overloading
- B. this can damage the domestic wiring due to overloading
- C. this can damage the electrical meter
- D. the appliance will not get full voltage Discuss
- 8. Natural radioactivity was discovered by
Options- A. Marie Curie
- B. Ernest Rutherfor
- C. Henri Becquerel
- D. Enrico Fermi Discuss
- 9. Stars twinkle because
Options- A. the intensity of light emitted by them changes with time
- B. the distance of the stars from the earth changes with time
- C. the refractive index of the different layers of the earth's atmosphere changes continuously, consequently the position of the image of a start changes with time
- D. the light from the star is scattered by the dust particles and air molecules in the earth's atmosphere Discuss
- 10. Pa(Pascal) is the unit for
Options- A. thrust
- B. pressure
- C. frequency
- D. conductivity Discuss
Physics problems
Search Results
Correct Answer: move towards B
Correct Answer: normal atmospheric pressure is maintained by the use of air pumps
Correct Answer: Electrical
Correct Answer: the rolling friction is much less than the sliding friction
Correct Answer: offer no resistance to the flow of electricity
Correct Answer: east
Correct Answer: this can damage the domestic wiring due to overloading
Correct Answer: Henri Becquerel
Correct Answer: the refractive index of the different layers of the earth's atmosphere changes continuously, consequently the position of the image of a start changes with time
Correct Answer: pressure
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