Assume that for solar radiation, surface temperature of the sun is 6000 K. If Wien's constant 'b' is 2.897 × 10⁻³ mK, the value of maximum wavelength will be (a) 4828 A (b) 3648 A (c) 6400 A (d) 5890 A

Answer: (a). Wien's law: λm = b/T. λm = 2.897 × 10⁻³6000 = 4.828 × 10⁻⁷ m = 4828 A So the answer is (a) 4828 A.

Assume that for solar radiation, surface temperature of the sun is… | MHT CET 2021 (24 Sep, Shift 2)

Q90MHT CET 2021 · 24 SEP · SHIFT 2Easy

Thermal Radiation: Black Body, Stefan & Wien

Assume that for solar radiation, surface temperature of the sun is $6000\text{ K}$ . If Wien's constant 'b' is $2.897 \times 10^{-3}\text{ mK}$ , the value of maximum wavelength will be

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Answer: (a)

Wien's law: $\lambda_m = \dfrac{b}{T}$ .
$\lambda_m = \dfrac{2.897 \times 10^{-3}}{6000} = 4.828 \times 10^{-7}\ \text{m}$
$= 4828\ \mathring{A}$
So the answer is (a) $4828\ \mathring{A}$ .

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Thermal Radiation: Black Body, Stefan & Wien question from MHT CET 2021 (24 Sep, Shift 2)

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