Discussion
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- Question
Which one among the following components is used as an amplifying device?
Options- A. Transformer
- B. Diode
- C. Capacitor
- D. Transistor
- Correct Answer
- Transistor
- 1. If the velocity of a body is halved its kinetic energy ________________.
Options- A. become 4 times
- B. becomes 1/4 th
- C. is also doubled
- D. becomes half Discuss
- 2. A body is initially moving with a velocity of 5 m/s. It undergoes an acceleration of 2 m/s2 for 4 seconds. Find the displacement (in m) of this body in these 4seconds.
Options- A. 4
- B. 72
- C. 36
- D. 8 Discuss
- 3. Choose the most appropriate answer:In which atmospheric layer are the communication satellites located?
Options- A. Stratosphere
- B. Ionosphere
- C. Troposphere
- D. Mesosphere Discuss
- 4. Choose the most appropriate answer:Sir CV Raman was awarded Noble Prize for his work connected with which of the following phenomenon of radiation?
Options- A. Scattering
- B. Diffraction
- C. Interference
- D. Polarization Discuss
- 5. Temperature of distant luminous bodies can be determined by
Options- A. Mercury thermometers
- B. Gas thermometers
- C. Pyrometers
- D. Colour thermometers Discuss
- 6. The unit of measurement of noise is
Options- A. Decibel
- B. Hertz
- C. Amplifier
- D. Acoustics Discuss
- 7. The complete form of 'IC' in electronics is
Options- A. Internal circuit
- B. Independent circuit
- C. Integrated circuit
- D. Inbuilt circuit Discuss
- 8. Anemometer is an instrument meant for measuring __________
Options- A. velocity
- B. air masses
- C. wind speed
- D. temperature Discuss
- 9. The spring balance works on the principle of __________
Options- A. Boyle's Law
- B. Hooke's Law
- C. Bernoulli's principle
- D. Pascal's Law Discuss
- 10. If there were no gravity, which of the following will not be there for a fluid?
Options- A. Viscosity
- B. Surface Tension
- C. Pressure
- D. Upward Thrust Discuss
Physics problems
Search Results
Correct Answer: becomes 1/4 th
Correct Answer: 36
Correct Answer: Ionosphere
Explanation:
The communication satellites are located in Ionosphere.
Correct Answer: Scattering
Explanation:
The Nobel Prize in Physics 1930 was awarded to Sir Chandrasekhara Venkata Raman "for his work on the scattering of light and for the discovery of the effect named after him".
Correct Answer: Pyrometers
Correct Answer: Decibel
Correct Answer: Integrated circuit
Correct Answer: wind speed
Correct Answer: Hooke's Law
Correct Answer: Upward Thrust
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