Question

Assertion(A) Black body is an ideal body that emits and absorbs radiations of all frequencies.
Reason(R) The frequency of radiation emitted by a body goes from a lower frequency to higher frequency with an increase in temper

Answer 1

Answer:

Assertion (A): Black body is an ideal body that emits and absorbs radiations of all frequencies. Reason (R): The frequency of radiation emitted by a body goes from a lower frequency to higher frequency with an increase in temperature. Answer: (b) Black bodies can absorb and emit the radiations of all frequencies.