Physics MCQs

852 MCQs  (Page 5 of 86)

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At what temperature is the Fahrenheit scale reading equal to twice that of the Celsius scale?
A. 460°c
B. 280°c
C. 360°c
D. 160°c
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The area enclosed by the curve ABCDA for a Carnot heat engine represents the work done by Carnot engine_______________?
A. At any instant
B. Averagely
C. During its operation
D. During one cycle
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For a gas obeying Boyles law if the pressure is doubled the volume becomes________________?
A. Double
B. One half
C. Four times
D. One fourth
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Triple point of water is_____________________?
A. 273°c at 6.11 kpa
B. 273k at 61.6 kpa
C. 273.16°c at 0.611 kpa
D. 273.16k at 750 kpa
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Which of the following properties of molecules of a gas is same for all gases at particular temperature ?
A. Momentum
B. Mass
C. Velocity
D. Kinetic energy
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The pressure exerted by a column of mercury 76cm high and at 0°C is called_______________?
A. 1 atmosphere
B. 1 newton per square meter
C. 1 pascal
D. Data is insufficient
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If the pressure of a given gas is held constant its density is inversely proportional to its absolute temperature. We can refer it as another statement of______________?
A. Boyles law
B. Charles law
C. Ideal gas law
D. Avagadros law
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Gas molecules of different masses in the same container have the same average transnational kinetic energy which is directly proportional to their_____________?
A. Volume
B. Pressure
C. Absolute temperature
D. Time
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Boyles law helds for ideal gases in________________?
A. Isochoric processes
B. Isobaric processes
C. Isothermal processes
D. Adiabatic processes
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If the volume of a gas is held constant and we increase its temperature then_______________?
A. Its pressure is constant
B. Its pressure rises
C. Its pressure falls
D. Any of above
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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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