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- Question
Siphon will fail to work if
Options- A. The level of the liquid in the two vessels are at the same height
- B. The temperature of the liquids in the two vessels are the same
- C. The densities of the liquid in the two vessels are equal
- D. Both its limbs are of unequal length
- Correct Answer
- The level of the liquid in the two vessels are at the same height
- 1. Graphite is a good conductor of electricity.
Options- A. TRUE
- B. FALSE Discuss
- 2. The least penetrating power ray is
Options- A. Gamma rays
- B. Beta rays
- C. Alpha rays
- D. None of the above Discuss
- 3. One billionth of a second is called
Options- A. microsecond
- B. picoseconds
- C. millisecond
- D. nanosecond Discuss
- That is, 1/1,000,000,000 of a second, or 10^?9 seconds.
- 4. Gear Lapping is an operation
Options- A. for gear reconditioning
- B. prior to heat treatment
- C. after heat treatment
- D. None of the above Discuss
- 5. Which sources produce alternating current (AC)?
Options- A. Solar power plants
- B. Hydro-electric generators
- C. Batteries
- D. All of the above Discuss
- 6. A wave with high amplitude have
Options- A. high pitch
- B. low energy
- C. high energy
- D. low pitch Discuss
- 7. An electric fuse is based on
Options- A. the chemical effect of the current
- B. the magnetic effect of the current
- C. the heating effect of the current
- D. All of the above Discuss
- 8. The flow of thermal energy is called
Options- A. Heat
- B. Current
- C. Voltage
- D. Potential Discuss
- 9. A permanent magnet can affect
Options- A. Magnets
- B. Electromagnets
- C. Both A & B
- D. None of the above Discuss
- 10. The solubility of a gas in a liquid is
Options- A. increased with increasing pressure
- B. decreased with increasing temperature
- C. Both A & B
- D. None of the above Discuss
Physics problems
Search Results
Correct Answer: TRUE
Explanation:
Graphite is a good conductor of electricity as it contains free electrons to move through the structure of the graphite.
Correct Answer: Alpha rays
Explanation:
The least penetrating power ray is Alpha rays.
Correct Answer: nanosecond
Explanation:
A nanosecond (ns) is an SI unit of time equal to one thousand-millionth of a second or one billionth of a second.
Correct Answer: after heat treatment
Correct Answer: Hydro-electric generators
Explanation:
Alternating Current (AC) is the current in which flow of current is altered periodically whereas in DC current i.e, direct current the flow of current is only in one direction.
Some of the sources of AC current are :
1. Hydro-electric generators
2. Thermal power generators
3. Nuclear power generators...
Correct Answer: high energy
Explanation:
The amplitude of a wave is a measure of the displacement of the wave from its rest position i.e, half the distance from its highest point to its lowest point.
Amplitude is proportional to the energy of a wave.
Correct Answer: the heating effect of the current
Explanation:
An electric fuse is based on the heating effect of the current.
Correct Answer: Heat
Correct Answer: Both A & B
Correct Answer: Both A & B
Explanation:
The solubility of a gas in a liquid is directly and inversely proportional to pressure and temperature respectively.
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