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.
Answer:B
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.