A fringe shift occurs for every ______ wavelength movement of the adjustable mirror in a Michelson interferometer. A fringe shift occurs when the intensity goes from bright to dark or when it goes from dark to bright
a. half
c. quarter
b. eighth
d. whole
C
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Almost every celestial object we see in the sky on a dark, clear night is within the Milky Way galaxy
a. True b. False Indicate whether the statement is true or false
A temperature inversion occurs when the upper layers of air are
A) warmer than the lower regions of air. B) cooler than the lower regions of air. C) at the same temperature as lower regions of air.
What can we detect from matter that has crossed an event horizon?
A) Gamma-ray bursts B) Radio waves if the matter was traveling fast enough C) Visible light D) X-rays if the matter was dense E) Nothing
An airplane flies between two points on the ground that are 500 km apart. The destination is directly north of the point of origin of the flight. The plane flies with an airspeed of 120 m/s
If a constant wind blows at 10 m/s toward the west during the flight, what direction must the plane fly relative to the air to arrive at the destination? A) 4.8° west of north B) 85° west of north C) 4.8° east of north D) 5.9° west of north E) 5.9° east of north