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- Question
What is the SI unit of heat energy?
Options- A. Joule
- B. Newton
- C. Calorie
- D. Kelvin
- Correct Answer
- Joule
- 1. Which among the following determines the pitch of a sound?
Options- A. Amplitude
- B. Frequency
- C. Loudness
- D. Wavelength Discuss
- 2. Which compressor is usually used in AC?
Options- A. Centrifugal
- B. Rotary
- C. Reciprocating
- D. Axial Discuss
- 3. The energy that generates wind comes from what source?
Options- A. Anemometers
- B. Solar radiation
- C. Ocean currents
- D. None of the above Discuss
- 4. The unit of energy in MKS system is
Options- A. Joule
- B. Ohm
- C. Erg
- D. Volt Discuss
- 5. Circuit breaker usually operate under
Options- A. after D. C. component has ceased
- B. transient state of short-circuit current
- C. sub-transient state of short-circuit current
- D. steady state of short-circuit current Discuss
- 6. What is the SI unit of Power?
Options- A. Boyle
- B. Watt
- C. Newton
- D. Pascal Discuss
- 7. When light passes from one medium to another, this phenomenon of change in its direction is called _____.
Options- A. Refraction
- B. Diffraction
- C. Propagation
- D. No option is correct Discuss
- 8. For an object, the state of rest is considered to be the state of ______ speed.
Options- A. increasing
- B. B)
- C. inverse
- D. zero Discuss
- 9. Instrument for measuring low temperatures is called
Options- A. Diagometer
- B. Cryometer
- C. Chromatoptometer
- D. Cymometer Discuss
- 10. The antiparticle of an electron is
Options- A. Positron
- B. Proton
- C. Alpha particles
- D. Beta particles Discuss
Physics problems
Search Results
Correct Answer: Frequency
Correct Answer: Reciprocating
Correct Answer: Solar radiation
Explanation:
Wind is nothing but the form of moving air. It is caused by the uneven heating of the earth's surface by the sun. Hence, the energy that generates wind comes from solar radiation.
Correct Answer: Joule
Explanation:
The unit of energy in MKS system is Joule.
Correct Answer: transient state of short-circuit current
Correct Answer: Watt
Correct Answer: Refraction
Correct Answer: zero
Correct Answer: Cymometer
Correct Answer: Positron
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