1) Which type of radiation can be observed well from Earth's surface?
A) infrared
B) ultraviolet
C) gamma ray
D) visible
E) x-ray
2) At which of these Kelvin temperatures would a blackbody radiate mostly at visible wavelengths?
A) 6000 K
B) 60 K
C) 600 K
D) None of these; a blackbody doesn't radiate visible light.
E) 6 K
A) infrared
B) ultraviolet
C) gamma ray
D) visible
E) x-ray
2) At which of these Kelvin temperatures would a blackbody radiate mostly at visible wavelengths?
A) 6000 K
B) 60 K
C) 600 K
D) None of these; a blackbody doesn't radiate visible light.
E) 6 K