As the temperature of a blackbody increases, the peak of its radiation curve moves
a. upward toward higher intensity.
b. downward toward lower intensity.
c. toward larger wavelength.
d. toward smaller wavelength.
e. none of the above.
a, d
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If the redshift of a quasar were 3, at what wavelength would the 486.1-nm line of hydrogen appear in the quasar's spectrum?
What will be an ideal response?
The Hawaiian Islands were formed when
A) oceanic crust sank below continental crust at a tectonic plate boundary B) volcanic material flowed out from the interior at a hot spot beneath the Pacific Ocean C) molten lava oozed out between two tectonic plates that were slowly moving apart D) dense material sank while lighter material rose to the surface during the early geological history
Which of the following is an example of antimatter?
A) neutron B) positron C) neutrino D) muon E) electron
To analyze single-slit diffraction, what new assumption not made in the Young double-slit experiment must be made?
1.Each portion of the slit acts as a source of light waves. 2.The light's wavelength is at the red end of the spectrum. 3.Interference effects can be ignored. 4.The distance between the slit and the screen is much greater than the wavelength of the light.