Discussion
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- Question
Which of the following is false with reference to a photo-voltaic cell?
Options- A. It is another name as solar cell
- B. It can be used as infra-red detectors
- C. It can store light energy in the form of electrical energy
- D. It converts electric energy into light energy
- Correct Answer
- It converts electric energy into light energy
- 1. What is the fundamental unit of amount of a substance?
Options- A. Mole
- B. Candela
- C. Kelvin
- D. Meter Discuss
- 2. What is the unit of the physical quantity Entropy?
Options- A. watt per kelvin
- B. newton per kelvin
- C. pascal per kelvin
- D. joule per kelvin Discuss
- 3. Unit of impedance is ___________.
Options- A. ohm
- B. henry
- C. tesla
- D. hertz Discuss
- 4. Friction is caused by the ______________ on the two surfaces in contact.
Options- A. irregularities
- B. smoothness
- C. densities
- D. gaps Discuss
- 5. 1 m/s equals ____________ km/hr
Options- A. 5/16
- B. 16/5
- C. 18/5
- D. 5/18 Discuss
- 6. Rate of work done is _______.
Options- A. Energy
- B. Power
- C. Momentum
- D. Impulse Discuss
- 7. For what is Radiocarbon dating technique used?
Options- A. To estimate soil contamination
- B. To estimate the amount of water in fossils
- C. To estimate the age of fossils
- D. To estimate the quality of soil Discuss
- 8. Density of water is maximum at ______.
Options- A. 12 degree Celsius
- B. 8 degree Celsius
- C. 4 degree Celsius
- D. 0 degree Celsius Discuss
- 9. During uniform motion of an object along a straight line, the ________ remains constant with time.
Options- A. Time
- B. Velocity
- C. Acceleration
- D. Distance Discuss
- 10. The instrument used for measuring air pressure is called .....
Options- A. Anemometer
- B. Barometer
- C. Hygrometer
- D. Thermometer Discuss
Physics problems
Search Results
Correct Answer: Mole
Correct Answer: joule per kelvin
Correct Answer: ohm
Correct Answer: irregularities
Correct Answer: 18/5
Correct Answer: Power
Correct Answer: To estimate the age of fossils
Correct Answer: 4 degree Celsius
Correct Answer: Velocity
Correct Answer: Barometer
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