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Thermal Properties Of Matter

Question

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The surface temperature of the sun which has maximum energy emission at 500 nm is 6000 K. The temperature of a star which has maximum energy emission at 400 nm will be

8500 K

4500 K

7500 k

6500 K

Solution

7500 k

Wein's displacement law:- Relationship between the temperature of a black body ( an ideal substance that emits and absorbs all frequencies of light) and the wavelength at which it emits the most light.

$λ_{m} T = Constant$

By using Wein's Displacement law,

${(λ_{m})}_{1} T_{1} = {(λ_{m})}_{2} T_{2}$

⇒ 500 × 6000 = 400 × T₂

⇒ T₂ = $\frac{500 \times 6000}{400}$

⇒ T₂ = 7500 K

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Thermal Properties Of Matter

The surface temperature of the sun which has maximum energy emission at 500 nm is 6000 K. The temperature of a star which has maximum energy emission at 400 nm will be

8500 K

4500 K

7500 k

6500 K

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A radiation of energy E falls normally on a perfectly reflecting surface. The momentum transferred to the surface is

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For Daily Free Study Material Join wiredfaculty

Thermal Properties Of Matter

The surface temperature of the sun which has maximum energy emission at 500 nm is 6000 K. The temperature of a star which has maximum energy emission at 400 nm will be 8500 K 4500 K 7500 k 6500 K

Some More Questions From Thermal Properties of Matter Chapter

A radiation of energy E falls normally on a perfectly reflecting surface. The momentum transferred to the surface is

Mock Test Series

NCERT Sample Papers

Entrance Exams Preparation

The surface temperature of the sun which has maximum energy emission at 500 nm is 6000 K. The temperature of a star which has maximum energy emission at 400 nm will be

8500 K

4500 K

7500 k

6500 K