Assertion : For higher temperature, the peak emission wavelength of a black body shifts to lower wavelengths.
Reason : Peak emission wavelength of a black body is proportional to the fourth power of temperature.

Options

A. If both the assertion and reason are true and reason is the correct explanation of the assertion.
B. If both the assertion and reason are true but the reason is not correct explanation of the assertion.
C. If the assertion is true but the reason is false
D. If the both the assertion and reason are false.

Answer

C

Explanation

According to Wein's law `lambda_(m)T` = constant ie., peak emission wavelength `lambda_(m) prop 1//T` Also as `T` increase `lambda_(m)` decreases.

Hence assertion is true but reason is false.