Physical Quantities and SI Unit MCQs with Answers PDF Download – Test 86

MCQ 426: SI unit of length is:

1. meter
2. kilogram
3. kilometer
4. None of the above

MCQ 427: Most of the watches and wall clocks have precision of:

1. Minutes
2. Hours
3. Seconds
4. Microseconds

MCQ 428: Waves transfer energy from one point to the other.:

1. It's true
2. Its false
3. its neutral
4. None of others

MCQ 429: Specific heat capacity of a substance is equal to:

1. the amount of heat required to raise the temperature of a 1 kg of a substance by 1 K
2. the amount of heat required to raise the temperature of a substance by 1 K
3. the amount of heat required to change the phase of a substance from solid to liquid without any change in temperature
4. the amount of heat required to change the phase of a substance from liquid to gas without any change in temperature

MCQ 430: Heat absorbed or released by the same state of matter is represented by:

1. Q = mcΔθ
2. Q = mc/Δθ
3. Q = m/cΔθ
4. Q = Δθ/mc