Identify the INCORRECT statement about the black body radiation (a) Intensity is same for all wavelengths. (b) Intensity is maximum for a particular wavelength. (c) Intensity is less for longer wavelengths. (d) A black body emits all wavelengths.

Answer: (a). A black body emits all wavelengths, and its spectrum has a peak at λm (Wien's law), falling off at longer wavelengths. So intensity is not the same for all wavelengths. So the incorrect statement is (a).

Identify the INCORRECT statement about the black body radiation | MHT CET 2026 (20 May, Shift 1)

Q9MHT CET 2026 · 20 MAY · SHIFT 1Easy

Thermal Radiation: Black Body, Stefan & Wien

Identify the INCORRECT statement about the black body radiation

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Answer: (a)

A black body emits all wavelengths, and its spectrum has a peak at $\lambda_m$ (Wien's law), falling off at longer wavelengths.
So intensity is not the same for all wavelengths.
So the incorrect statement is (a).

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