# The light from the Sun is found to have a maximum intensity near the wavelength of 470 nm. Assuming the surface of the Sun as a black body, the temperature of the Sun is _____________. - Physics

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The light from the Sun is found to have a maximum intensity near the wavelength of 470 nm. Assuming the surface of the Sun as a black body, the temperature of the Sun is _____________.

[Wien's constant b = 2 .898 x l0- 3mK]

• 5800 K

• 6050 K

• 6166 K

• 6500 K

#### Solution

The light from the Sun is found to have a maximum intensity near the wavelength of 470 nm. Assuming the surface of the Sun as a black body, the temperature of the Sun is 6166 K.

Explanation:

Given:  λm​= 470nm = 4.70×10−7m  b = 2.898×10−3mK

From Wien's displacement law,

m​ = b

We get, temperature of sun

T = b/(λ_m)

∴ T = (2.898 xx 10^(−3​))/(4.70 xx 10^(−7)) = 6166  K

Concept: Heat and Temperature
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