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Wien's Displacement Law

If the temper...

Question

If the temperature of the sun is doubled then the maximum emission wavelength as compared to its initial value will be

A

1/4 times

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B

1/2 times

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C

double

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D

4 times

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Solution

The correct option is B 1/2 times
According to Wein's displacement law:
$λ T = b$
$λ_{1} T_{1} = λ_{2} 2 T_{1}$
i.e.
$\frac{λ_{2}}{λ_{1}} = \frac{1}{2}$

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