Physics MCQs

852 MCQs  (Page 3 of 86)

Attempt Physics Quiz
A stone is thrown upward from the top of a 59.4m high cliff with an upward velocity component of 19.6m/s how long is the stone in the air?
A. 4.00 s
B. 5.00 s
C. 6.00 s
D. 7.00 s
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The purpose of flywheel in the engines is________________?
A. To smooth out the energy variation
B. To add more weight to engine to work it stable
C. To start engine
D. Both a and b
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Petrol engine is a________________?
A. C.i engine
B. Si engine
C. Ic engine
D. All the above
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Which quantity is a state function_______________?
A. Internal energy
B. Heat supply
C. Pressure
D. Volume
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The unit of entropy is________________?
A. J.k
B. J/k
C. N.m/sec
D. Kgm2/sec2.k
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The performance of a refrigerator is described by________________?
A. Efficiency
B. Coefficient of performance
C. Both a and b
D. Not described
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In which process all the heat supplied is converted into work done ?
A. Isothermal
B. Isochoric
C. Isobaric
D. Isentropic
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The value of γ for diatomic gas is_______________?
A. 1.67
B. 1.4
C. Γ = 1.3
D. None
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Boltzman constant K in terms of universal gas constant R and Avagadros number Na is give as_______________?
A. K = rna
B. K = r/na
C. K = na/ra
D. K = nrna
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Average translational kinetic energy per molecule of an ideal gas is given by_____________?
A. 3nat/2r
B. 2nat/3
C. 3rt/2na
D. 3na/2rt
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Word of the Day
22 Jul
Combative
ready or eager to fight or argue.
لڑاکا، متنازع، جھگڑالو

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