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Properties of Matter question

2004 · Q153
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Properties of Matter question

2004 · Q153

NEETPhysicsProperties of MatterMCQ+4 / −1
If λ\lambdaλm denotes the wavelength at which the radioactive amission from a black body at a temperature TK is maximum, then
  1. A
    λm ∝ T4{\lambda _m}\, \propto \,{T^4}λm​∝T4
  2. B
    λm{\lambda _m}λm​ is independent of T
  3. C
    λm{\lambda _m}λm​ ∝\propto∝ T
  4. D
    λm ∝ T−1{\lambda _m}\, \propto \,{T^{ - 1}}λm​∝T−1
View written solutionFree

Correct answer: D

From Wein’s displacement law

λmT{\lambda _m}Tλm​T = constant

⇒λm∝T−1 \Rightarrow {\lambda _m} \propto {T^{ - 1}}⇒λm​∝T−1

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