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  4. Following figure shows spectrum of an ideal black body at four different temperatures. The number of correct statement/s from the following is <img class=img-fluid question-image alt=image src=https://cdn.tardigrade.in/img/question/chemistry/d64378b9c3fdb7890fa79591a778b7ba-.png /> A. T 4> T 3> T 2> T 1 B. The black body consists of particles performing simple harmonic motion. C. The peak of the spectrum shifts to shorter wavelength as temperature increases. D. (T1/v1)=(T2/v2)=(T3/v3) ≠ constant E. The given spectrum could be explained using quantisation of energy.

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Q. Following figure shows spectrum of an ideal black body at four different temperatures. The number of correct statement/s from the following is ________
image
A. $T _4> T _3> T _2> T _1$
B. The black body consists of particles performing simple harmonic motion.
C. The peak of the spectrum shifts to shorter wavelength as temperature increases.
D. $\frac{T_1}{v_1}=\frac{T_2}{v_2}=\frac{T_3}{v_3} \neq$ constant
E. The given spectrum could be explained using quantisation of energy.

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Solution:

The spectrum of Black body radiation is explained using quantization of energy. With increase in temperature, peak of spectrum shifts to shorter wavelength or higher frequency. For above graph $\rightarrow T _1> T _2> T _3> T _4$