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Class 9 Physics Online Tests

# Heat Transfer and Radiation Multiple Choice Questions (MCQ) PDF Download

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The MCQ: A transparent polyethene sheet works as heat trapper because it; "Heat Transfer and Radiation" App Download (Free) with answers traps radiations of sun inside only, passes radiations of short wavelength only, traps long wavelength radiations and traps radiation of sun inside and passes radiations of short wavelength to study online certificate courses. Solve transfer of heat quiz questions, download Google eBook (Free Sample) for free online courses.

## Heat Transfer and Radiation MCQs: Questions and Answers

MCQ 1: A transparent polyethene sheet works as heat trapper because it

A) traps radiations of sun inside only
B) passes radiations of short wavelength only
C) traps long wavelength radiations
D) traps radiation of sun inside and passes radiations of short wavelength

MCQ 2: The rate of emission of radiation depends on

A) color and texture of surface
B) surface temperature
C) surface area
D) all of above

MCQ 3: Carbon dioxide in atmosphere traps the radiation and causes

A) decrease in temperature
B) greenhouse effect
C) depletion of ozone layer
D) formation of ozone layer

MCQ 4: If the temperature of an object is higher than its surroundings then it is

A) radiating more heat than absorbing
B) conducting more heat than absorbing
C) absorbing more heat than radiating
D) conducting less heat than radiating

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