Discussion
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- Question
Friction is caused by the ______________ on the two surfaces in contact.
Options- A. irregularities
- B. smoothness
- C. densities
- D. gaps
- Correct Answer
- irregularities
- 1. 1 m/s equals ____________ km/hr
Options- A. 5/16
- B. 16/5
- C. 18/5
- D. 5/18 Discuss
- 2. Contact force is another name for _________.
Options- A. Friction
- B. Magnetic force
- C. Electrostatic force
- D. Muscular force Discuss
- 3. The motion of a freely falling body is an example of ________________________ motion.
Options- A. uniformly accelerated
- B. non-uniformly accelerated
- C. constant velocity
- D. constant speed Discuss
- 4. Which of the following pair is INCORRECT? I. Parsec - Distance II. Barrel - Liquid III. Light year - Time
Options- A. Only III
- B. Only I and III
- C. Only II
- D. All are correct Discuss
- 5. At what temperature (in degree celsius), the numerical values on Celsius and Fahrenheit scales become equal?
Options- A. ?40
- B. 40
- C. 273
- D. -273 Discuss
- 6. Unit of impedance is ___________.
Options- A. ohm
- B. henry
- C. tesla
- D. hertz Discuss
- 7. 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
- 8. What is the fundamental unit of amount of a substance?
Options- A. Mole
- B. Candela
- C. Kelvin
- D. Meter Discuss
- 9. 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 Discuss
- 10. Rate of work done is _______.
Options- A. Energy
- B. Power
- C. Momentum
- D. Impulse Discuss
Physics problems
Search Results
Correct Answer: 18/5
Correct Answer: Muscular force
Correct Answer: uniformly accelerated
Correct Answer: Only III
Correct Answer: ?40
Correct Answer: ohm
Correct Answer: joule per kelvin
Correct Answer: Mole
Correct Answer: It converts electric energy into light energy
Correct Answer: Power
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