Experimental investigations show that the intensity of solar radiation is maximum for a wavelength $480 n m$ in the visible region. Estimate the surface temperature of the sun. Given Wien's constant, $b = 2.88 \times 10^{- 3} m K$ .

5000 K

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6000 K

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8000 K

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$10^{6} K$

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Solution

The correct option is B
6000 K

According to Wien's law, $λ_{m} T = b$
$∴ T = \frac{b}{λ_{m}} = \frac{2.88 \times 10^{- 3}}{480 \times 10^{- 9}} = 6000 K$
Hence, the correct choice is (b).

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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 the sun. Given Wien's constant, b=2.88× 10−3mK.

The correct option is B 6000 K According to Wien's law, λmT=b ∴T=bλm=2.88×10−3480×10−9=6000 K Hence, the correct choice is (b).

Experimental investigations show that the intensity of solar radiation is maximum for a wavelength $480 n m$ in the visible region. Estimate the surface temperature of the sun. Given Wien's constant, $b = 2.88 \times 10^{- 3} m K$ .

The correct option is B
6000 K

According to Wien's law, $λ_{m} T = b$
$∴ T = \frac{b}{λ_{m}} = \frac{2.88 \times 10^{- 3}}{480 \times 10^{- 9}} = 6000 K$
Hence, the correct choice is (b).