If the diameter of a radar dish is doubled, what happens to its resolving power, assuming that all other factors remain unchanged?
A) The resolving power does not change unless the focal length changes.
B) The resolving power is reduced to 1/4 of its original value.
C) The resolving power is reduced to 1/2 of its original value.
D) The resolving power doubles.
E) The resolving power quadruples.
D
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Simple Pendulum: A simple pendulum having a bob of mass M has a period T. If you double M but change nothing else, what would be the new period?
A. 2T
B. T
C. T
D. T/
E. T/2
What is the space probe that is currently orbiting Saturn and is responsible for numerous discoveries of storms and weather patterns in Saturn's atmosphere called?
A) Galileo B) Encke C) New Horizons D) Cassini E) Messenger
Each pattern shown below would appear on a screen when monochromatic light first passes through a narrow slit of width a and then strikes a screen. The darkest areas on the page represent the brightest areas on the screen. In which case is the slit illuminated with light of the longest wavelength?
A.
B.
C.
D.
E.
Suppose two equipotential surfaces are the planes x = 3 m and x = 5 m. If the potential at the x = 3 m surface is 10 V and the potential at the x = 5 m surface is 50 V, what is the magnitude of the electric field between the two surfaces?
a. 40 N/C b. 20 N/C c. 15 N/C d. 10 N/C