Electromagnetic Spectrum And The Sun: Question Preview (ID: 31)

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At which temperature would a source radiate the least amount of electromagnetic energy?
a) 5 K
b) 32 K
c) 212 K
d) 273 K

Infrared, ultraviolet, and visible light are all part Infrared, ultraviolet, and visible light are all part between them is their
a) wavelength
b) speed
c) source
d) temperature

An object that is a good absorber of electromagnetic energy is also a good
a) radiator of electromagnetic energy
b) convector of electromagnetic energy
c) refractor of electromagnetic energy
d) reflector of electromagnetic energy

Which type of surface would most likely be the best reflector of electromagnetic energy?
a) light-colored and smooth
b) light-colored and rough
c) dark-colored and smooth
d) dark-colored and rough

Which color is the best radiator of electromagnetic energy?
a) black
b) yellow
c) white
d) red

Changing the shingles on the roof of a house to a lighter color will most likely reduce the amount of solar energy that is
a) absorbed
b) scattered
c) reflected
d) refracted

Compared to the wavelength of ultraviolet radiation, the wavelength of infrared radiation is
a) longer
b) shorter
c) the same
d) none of the above

What is the basic difference between ultraviolet, visible, and infrared radiation?
a) wavelength
b) wave velocity
c) temperature
d) half-life

In which list are the forms of electromagnetic energy arranged in order from longest to shortest wavelengths?
a) radio waves, infrared rays, visible light, ultraviolet rays
b) gamma rays, x rays, ultraviolet rays, visible light
c) x rays, infrared rays, blue light, gamma rays
d) infrared rays, radio waves, blue light, red light

Which statement about electromagnetic energy is correct?
a) Gamma rays have a shorter wavelength than visible light.
b) Radar waves have a shorter wavelength than ultraviolet rays.
c) X rays have a longer wavelength than infrared waves.
d) Violet light has a longer wavelength than red light.

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