The number of incorrect statement/s about the black body from the following is ______. (A) Emit or absorb energy in the form of electromagnetic radiation. (B) Frequency distribution of the emitted radiation depends on temperature. (C) At a given temperature, intensity vs frequency curve passes through a maximum value. (D) The maximum of the intensity vs frequency curve is at a higher frequency at higher temperature compared to that at lower temperature.

Black Body Radiation – Incorrect Statements | JEE Main PYQ | Structure of Atom

Q. The number of incorrect statement/s about the black body from the following is ______.

(A) Emit or absorb energy in the form of electromagnetic radiation.

(B) Frequency distribution of the emitted radiation depends on temperature.

(D) The maximum of the intensity vs frequency curve is at a higher frequency at higher temperature compared to that at lower temperature.

Correct Answer: 0

Explanation

(A) Correct — Black body absorbs and emits electromagnetic radiation.

(B) Correct — Frequency distribution depends on temperature.

(D) Correct — According to Wien’s displacement law, higher temperature shifts the peak to higher frequency.

Since all the given statements are correct, the number of incorrect statements is:

Previous Year Questions – Structure of Atom