Light is refracted through a diamond. If the angle of incidence is 30°, and the angle of refraction is 12°, what is the index of refraction?
a. 1.3
b. 2.4
c. 2.6
d. 1.8
e. 0.4
b
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At the lowest point in a vertical dive (radius = 0.58 km), an airplane has a speed of 300 km/h which is not changing. Determine the magnitude of the acceleration of the pilot at this lowest point.
A. 26 m/s2 B. 21 m/s2 C. 16 m/s2 D. 12 m/s2 E. 8.8 m/s2
Climate models predict that due to the melting of the polar ice caps, sea levels by the end of this century
A) will remain stable due to increased evaporation into the Earth's atmosphere B) may rise by several tens of meters C) will actually fall by several inches due to increased evaporation into the Earth's atmosphere D) may rise by several meters
A vehicle designed to operate on a drag strip accelerates from zero to 34 m/s while undergoing a straight-line path displacement of 48 m. What is the vehicle's acceleration if its value may be assumed to be constant?
a. 9 m/s2 b. 6.0 m/s2 c. 12 m/s2 d. 18 m/s2 e. 24 m/s2
How wide must a narrow slit be if the first diffraction minimum occurs at ±12° with laser light of 633 nm?
a. 3.0 × 10^?6 m b. 3.0 × 10^?5 m c. 6.1 × 10^?6 m d. 6 .1× 10?5 m e. 1.5 × 10^?6 m