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Q. |
The wavelength at which the peak of intensity of blackbody radiation Occurs – |
A. | increases with increase in temperature |
B. | decreases with increase in temperature |
C. | is the same at all temperatures |
D. | does not follow any pattern as temperature changes |
Answer» B. decreases with increase in temperature | |
Explanation: According to Wien's displacement law, when the temperature of a blackbody radiator increases, the overall radiated energy increases. Wavelength of maximum emission from a blackbody is inversely proportional to its temperature. Shorter-wavelength (higher-frequency) light corresponds to higherenergy photons. |
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