A ray of light is incident on a liquid-to-glass interface at an angle of 42°. Indices of refraction for the liquid and glass are, respectively, 1.63 and 1.52 . What is the angle of refraction for the ray moving through the glass?
a. 23°
c. 46°
b. 30°
d. 38°
C
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Which statements about the magnetic fields of Uranus and Neptune is FALSE?
A) Neither fits the Dynamo model very well. B) Uranus' field is tilted 60 degrees off its already tilted rotational axis. C) Neptune's field is tilted 47 degrees to its more conventional rotational axis. D) Both pass directly through the cores of their planets, like all other fields. E) Both may have ammonia water replacing the liquid metallic hydrogen.
A hydrogen atom is in the 6h state. Which of the following could be an orbital quantum number?
A) 5 B) 6 C) 7 D) 8 E) 9
Thanks to the far-flung Voyager and Pioneers, knowledge of our presence has now spread out over 30 light-years
Indicate whether the statement is true or false
Glacial striations are caused by
A) rocks embedded in the ice. B) glacial outwash. C) terminal moraines. D) melting ice.