What is the Sun's outermost atmosphere called?
A. the radiative zone
B. the photosphere
C. the corona
D. the chromosphere
Answer: C
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Assuming the frequency remains constant, a monochromatic light ray is transmitted through an glass-to-air boundary, what happens to the wavelength?
a. decreases c. increases b. approaches zero value d. remains unchanged
An uncharged spherical conducting shell surrounds a charge ?q at the center of the shell. The charges on the inner and outer surfaces of the shell are respectively
a. ?q, ?q. b. ?q, +q. c. +q, ?q. d. +q, +q. e. +q, 0.
Which of the following processes is consistent with the law of conservation of four-momentum? a) A particle moving eastward collides with and sticks to an identical particle at rest. The resulting single particle remains at rest but is more massive than the sum of the original particles’ masses.
A. C B. F
A glance at the speedometer on your vehicle will tell you your
A) average speed. B) instantaneous speed. C) overall speed. D) acceleration.