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11th Odisha Board
IMPORTANT
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A black body is a good absorber of heat, but it is a bad radiator.

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Important Questions on Heat Transfer

EASY
11th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 11>Chapter 18 - Heat Transfer>MODEI. QUESTIONS>Q 3
The thermal conductivity of air being less than that of felt, we prefer felt to air for thermal insulation.
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11th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 11>Chapter 18 - Heat Transfer>MODEI. QUESTIONS>Q 4
The unit of the coefficient of thermal conductivity in SI system is _____.
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11th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 11>Chapter 18 - Heat Transfer>MODEI. QUESTIONS>Q 5

The fall in temperature per unit length of a material in the steady state of conduction is called _____.

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11th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 11>Chapter 18 - Heat Transfer>MODEI. QUESTIONS>Q 6
Land and sea breezes are due to the process of _____.
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11th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 11>Chapter 18 - Heat Transfer>MODEI. QUESTIONS>Q 7
For proper ventilation of a building, windows must be open near the bottom and the top of the walls so as to let pass _____ (cool air/hot air) near the bottom.
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11th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 11>Chapter 18 - Heat Transfer>MODEI. QUESTIONS>Q 8
What type of spectrum you will obtain from a black body radiation?
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11th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 11>Chapter 18 - Heat Transfer>MODEI. QUESTIONS>Q 9
Temperature of the upper part of the flame is equal to the temperature on the sides.
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11th Odisha Board
IMPORTANT
Bureau's Higher Secondary Physics Class 11>Chapter 18 - Heat Transfer>MODEI. QUESTIONS>Q 11
When the temperature of a luminous body is increased then the frequency corresponding to a maximum energy of radiation _____.