On what is the Joule-Thomson effect based?
Correct answer B. Sudden expansion of gases
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Physics MCQs
Page 6 of Physics multiple-choice questions with answers. Tap an option to check yourself.
Page 6 of 45
What is the medium that carries a signal from its source to its destination called?
Correct answer D. Transmission channel
What does Newton’s third law of motion state?
Correct answer B. For every action there is an equal and opposite reaction.
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Why does oil rise up the wick of a lamp?
Correct answer C. Capillary action
Which of the following elements is not radioactive?
Correct answer B. Cadmium
Which unit is most suitable for expressing the radius of a nucleus?
Correct answer C. Fermi
What is the turning effect of a force called?
Correct answer C. Torque
Which of these waves has the lowest speed in a vacuum?
Correct answer B. Sound
Which ancient people are regarded as the pioneers of physics?
Correct answer B. Greek
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Which of the following is not a vector quantity?
Correct answer C. Speed
What is the least count of a Vernier caliper whose Vernier scale has 10 divisions?
Correct answer A. 0.1mm
Which of the following is NOT a derived quantity?
Correct answer A. Time
Which symbol is used for the prefix mega?
Correct answer C. M
Which SI unit has the symbol cd?
Correct answer D. Candela
Which branch of physics studies the internal structure of the Earth?
Correct answer D. Geophysics
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By roughly how much does gravity increase a falling body’s speed each second?
Correct answer A. 32 feet
A stone is thrown upwards from the top of a 59.4 m high cliff with an upward velocity component of 19.6 m/s. How long does it stay in the air?
Correct answer A. 6.00 s
What is the value of γ for a diatomic gas?
Correct answer C. 1.4
In which process is all the heat supplied converted into work?
Correct answer B. Isothermal
How is the performance of a refrigerator expressed?
Correct answer B. Coefficient of performance