Heat NEET Questions

Physics - Thermodynamics

Heat MCQ Questions


13.
Which factor does NOT affect the rate of heat conduction?
A.
Temperature difference
B.
Thickness of the material
C.
Color of the material
D.
Cross-sectional area
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ANSWER :
C. Color of the material
14.
In calorimetry, the principle used is based on:
A.
Conservation of momentum
B.
Conservation of mass
C.
Conservation of energy
D.
Conservation of charge
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ANSWER :
C. Conservation of energy
15.
The device used to measure specific heat capacity is called a:
A.
Thermometer
B.
Barometer
C.
Calorimeter
D.
Hygrometer
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ANSWER :
C. Calorimeter
16.
Which statement is true about convection?
A.
Occurs only in solids
B.
Involves fluid movement
C.
Does not require a medium
D.
Primary mode in metals
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ANSWER :
B. Involves fluid movement
17.
The emissivity of a perfect blackbody is:
A.
0
B.
0.5
C.
1
D.
Infinity
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ANSWER :
C. 1
18.
According to Newton's Law of Cooling, the rate of cooling is proportional to:
A.
Temperature of the object
B.
Temperature of the surroundings
C.
Difference in temperature between object and surroundings
D.
Sum of temperatures of object and surroundings
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ANSWER :
C. Difference in temperature between object and surroundings