If unpolarized light with Erms = 20 V/m is passed through a polarizer, what is the transmitted Erms?
A. 20 V/m
B. 14 V/m
C. 10 V/m
D. 7.1 V/m
E. 5.0 V/m
B. 14 V/m
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What will be an ideal response?
How might a pulsar appear to an observer?
A) It may appear to flash several times per second or more with near perfect regularity. B) It may slowly get dimmer and brighter with a period ranging from several days to several weeks. C) It may appear to flash at random intervals. D) It may appear to change color very rapidly, from blue to red and back again, with near perfect regularity. E) Its spectrum may alternate between showing blueshifts and redshifts very rapidly with near perfect regularity.
Specific Heat: A thermally isolated system is made up of a hot piece of aluminum and a cold piece of copper, with the aluminum and the copper in thermal contact. The specific heat capacity of aluminum is more than double that of copper. Which object experiences the greater magnitude gain or loss of heat during the time the system takes to reach thermal equilibrium?
A. the aluminum B. the copper C. Neither one; both of them experience the same size gain or loss of heat. D. It is impossible to tell without knowing the masses. E. It is impossible to tell without knowing the volumes.
For a diatomic quantum mechanical rotator, the energy difference between adjacent energy levels
A) increases as L increases. B) decreases as L increases. C) is constant for all L. D) varies randomly as L increases.