Which of the Following Statements About Thermal Radiation Is Always

Multiple Choice

Which of the following statements about thermal radiation is always true?

A) A hot object emits photons with a longer wavelength than a cool object.
B) A hot object emits photons with a higher average energy than a cool object.
C) A hot object emits more radio waves than a cool object.
D) A hot object emits more X-rays than a cool object.