About black body radiation, which of the following is the wrong statement? (a) For all wavelengths, intensity is same. (b) For shorter wavelengths, intensity is more. (c) For longer wavelengths, intensity is less. (d) All wavelengths are emitted by a black body.

Answer: (a). A black body emits all wavelengths, but with different intensities; the curve rises to a peak at λm and falls on either side. So intensity is not the same for all wavelengths. So the wrong statement is (a).

About black body radiation, which of the following is the wrong… | MHT CET 2023 (12 May, Shift 1)

Q74MHT CET 2023 · 12 MAY · SHIFT 1Easy

Thermal Radiation: Black Body, Stefan & Wien

About black body radiation, which of the following is the wrong statement?

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Answer: (a)

A black body emits all wavelengths, but with different intensities; the curve rises to a peak at $\lambda_m$ and falls on either side.
So intensity is not the same for all wavelengths.
So the wrong statement is (a).

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