SATHEE: Thermal Properties of Matter

Thermal Properties of Matter - Result Question 32

33. If $λ_{m}$ denotes the wavelength at which the radiative emission from a black body at a temperature $T K$ is maximum, then

[2004]

(a) $λ_{m} \propto T^{- 1}$

(b) $λ_{m} \propto T^{4}$

(d) $λ_{m} \propto T$

Show Answer

Answer:

Correct Answer: 33. (a)

Solution:

(a) From Wein’s displacement law

$λ_{m} T =$ constant

$\Rightarrow λ_{m} \propto T^{- 1}$

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Thermal Properties of Matter - Result Question 32

33. If λm denotes the wavelength at which the radiative emission from a black body at a temperature TK is maximum, then

Answer:

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33. If $λ_{m}$ denotes the wavelength at which the radiative emission from a black body at a temperature $T K$ is maximum, then