Physics problems
- 1. Gear Lapping is an operation
Options- A. for gear reconditioning
- B. prior to heat treatment
- C. after heat treatment
- D. None of the above Also asked in: AIEEE, Bank Exams, CAT, Analyst, Bank Clerk, Bank PO
Correct Answer: after heat treatment
- 2. One billionth of a second is called
Options- A. microsecond
- B. picoseconds
- C. millisecond
- D. nanosecond Also asked in: AIEEE, Bank Exams, CAT, GATE, Analyst, Bank Clerk, Bank PO
- That is, 1/1,000,000,000 of a second, or 10^?9 seconds.
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.
- 3. The least penetrating power ray is
Options- A. Gamma rays
- B. Beta rays
- C. Alpha rays
- D. None of the above Also asked in: AIEEE, Bank Exams, CAT, GATE, Analyst, Bank Clerk, Bank PO
Correct Answer: Alpha rays
Explanation:
The least penetrating power ray is Alpha rays.
- 4. Graphite is a good conductor of electricity.
Options- A. TRUE
- B. FALSE Also asked in: AIEEE, Bank Exams, CAT, Analyst, Bank Clerk, Bank PO, IT Trainer
Correct Answer: TRUE
Explanation:
Graphite is a good conductor of electricity as it contains free electrons to move through the structure of the graphite.
- 5. 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 Also asked in: AIEEE, Bank Exams, CAT, GATE, Analyst, Bank Clerk, Bank PO
Correct Answer: The level of the liquid in the two vessels are at the same height
- 6. A wave with high amplitude have
Options- A. high pitch
- B. low energy
- C. high energy
- D. low pitch Also asked in: AIEEE, Bank Exams, CAT, Analyst, Bank Clerk, Bank PO
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.
- 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 Also asked in: AIEEE, Bank Exams, CAT, Analyst, Bank Clerk, Bank PO
Correct Answer: the heating effect of the current
Explanation:
An electric fuse is based on the heating effect of the current.
- 8. The flow of thermal energy is called
Options- A. Heat
- B. Current
- C. Voltage
- D. Potential Also asked in: AIEEE, Bank Exams, CAT, GATE, Analyst, Bank Clerk, Bank PO
Correct Answer: Heat
- 9. A permanent magnet can affect
Options- A. Magnets
- B. Electromagnets
- C. Both A & B
- D. None of the above Also asked in: AIEEE, Bank Exams, CAT, Analyst, Bank Clerk, Bank PO
Correct Answer: Both A & B
- 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 Also asked in: AIEEE, Bank Exams, CAT, Analyst, Bank Clerk, Bank PO
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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