What characteristic of a telescope controls the amount of light captured by the telescope?
a. resolving power
b. magnifying power
c. size of eyepiece
d. number of mirrors
e. diameter of tube
e
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The internal energy of a monatomic ideal gas is equal to which of the following?
a. (3/2)PV b. (3/2)nT/V c. 3 T/P d. none of the above
An ideal gas is allowed to expand adiabatically. Assume the process is reversible. What is the change in entropy?
a. 0 b. nR ln (V2/V1) c. nR ln (T2/T1) d. kn ln (V2/V1) e. kn ln (T2/T1)
Light has a wavelength of 600 nm in a vacuum. It passes into glass, which has an index of refraction of 1.50. What is the wavelength of the light in the glass?
A) 600 nm B) 500 nm C) 400 nm D) 300 nm E) 200 nm
The prediction from special relativity that the length of a moving object will be shortened in the direction of motion is
a. time dilation b. length contraction c. the equivalence of mass and energy d. the principle of relativity e. none of the above