The thermal radiation from a hot body travels with a velocity of

Options

A. `330 m s^(-1)`
B. `2 xx 10^(8) m s^(-1)`
C. `1200 m s^(-1)`
D. `3 xx 10^(8) m s^(-1)`

Answer

D

Explanation

The thermal radiation from a hot body travels with a velocity of light in vacuum i.e., `3 xx 10^(8) ms^(-1)`.