The polarizing angle in air for diamond is 67.4°. Calculate the critical angle inside the diamond for total internal reflection
a. 32.6°
b. 22.6°
c. 24.6°
d. 28.6°
e. 48.8°
c
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What is responsible for causing weather on Earth?
A) the presence of the oceans B) the unequal heating of Earth's surface C) carbon dioxide in the atmosphere D) the jet streams.
Ignoring air resistance, what maximum speed can be given to a horizontally moving tennis ball as it clears the net 1.25 m high to remain within the edge of the court, which is 12.0 m from the bottom of the net?
A) 12.0 m/s B) 16.0 m/s C) 24.0 m/s D) 48.0 m/s
Distant dark mountains appear bluish because
A) they are far away. B) yellow is being scattered. C) you're looking at low-level blue sky between you and the mountain. D) of nature's wonderful preferences.
The Greek astronomer who assigned the stars to six magnitudes was named _______________
a. Aristotle b. Socrates c. Hipparchus d. Panos