Experimental investigations show that the intensity of solar radiation is maximum for a wavelength `480 nm` in the visible region. Estimate the surface temperature of sun. (Given Wien's constant `b = 2.88 xx 10^(-3) m K`).

Options

A. `4000 K`
B. `6000 K`
C. `8000 K`
D. `10^(6) K`

Answer

B

Explanation

According to Wien's displacement law,
`lambda_(max) T = b`
where b is the Wien's constant
`:. T = (b)/(lambda_(max))`
Substituting the given values, we get
`T = (2.88 xx 10^(-3) mK)/(480 xx 10^(-9) m) = 6000 K`