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JEE · NEET Previous Year Question

$The surface temperature of the stars is determined using$

Topic: JEE PYQ

Answer: B. Full step-by-step solution below.

A $Planck's law$
B $Wein's displacement law$
C $Rayleigh-Jeans law$
D $Kirchhoff's law.$

Correct answer: B

Solution

(b) The surface temperature of the stars is determined by Wein's displacement law. According to Wein's displacement law, λ_{m} T = b where b is Wein's constant whose value is 2.898 \times 10^{- 3} mK .

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