Discussion
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- Question
If the force applied on the object is in the direction of its motion, the speed of the object __________.
Options- A. increases
- B. stops
- C. decreases
- D. no effect
- Correct Answer
- increases
- 1. The frictional force exerted by fluids is also called ________.
Options- A. drag
- B. buoyancy
- C. upthrust
- D. convection Discuss
- 2. Which one of the following takes place during a nuclear fusion?
Options- A. a heavy nucleus bombarded by neutrons breaks up
- B. a heavy nucleus breaks up spontaneously
- C. two light nuclei combine to form a heavy nucleus
- D. a light nucleus breaks up spontaneously Discuss
- 3. Ozone protects biosphere from ___________
Options- A. X - rays
- B. Gamma rays
- C. Ultraviolet rays
- D. Infrared rays Discuss
- 4. Every hot object emits _________________
Options- A. X - rays
- B. Visible light
- C. Infrared rays
- D. Ultraviolet rays Discuss
- 5. The quality or tone of a musical sound produced by a stringed instrument depends on
Options- A. frequency of vibration
- B. length of the strings in the instrument
- C. Amplitude of vibration
- D. waveform of the sound Discuss
- 6. An image formed by a concave mirror on a screen is called __________?
Options- A. Virtual image
- B. Real image
- C. Inverted image
- D. Erect image Discuss
- 7. _______ optical data storage is a technology where data is stored in multiple layers in the optical disc.
Options- A. 3D
- B. 30D
- C. 300D
- D. 3000D Discuss
- 8. What is the SI unit of pressure?
Options- A. Newton
- B. Weber
- C. Pascal
- D. Henry Discuss
- 9. Sudden fall in the barometric reading is an indication of _______.
Options- A. Storm
- B. Scorching heat
- C. Rain
- D. Clear weather Discuss
- 10. Find the resistance (in mega ?) of a wire of length 8 m, cross sectional area 2 sq.cm and made of a material of resistivity 120 ?m.
Options- A. 1920
- B. 4.8
- C. 2.4
- D. 960 Discuss
Physics problems
Search Results
Correct Answer: drag
Correct Answer: two light nuclei combine to form a heavy nucleus
Correct Answer: Ultraviolet rays
Correct Answer: Infrared rays
Correct Answer: waveform of the sound
Correct Answer: Real image
Correct Answer: 3D
Correct Answer: Pascal
Correct Answer: Storm
Correct Answer: 4.8
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