Light strikes a diamond (n = 2.42) at an angle of 60° relative to the normal to the surface. What is the angle of refraction?
a. 21°
b. 30°
c. 38°
d. 69°
e. 71°
A
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A 2.00-m long piano wire with a mass per unit length of 12.0 g/m is under a tension of 8.00 kN. What is the frequency of the fundamental mode of vibration of this wire?
A) 204 Hz B) 102 Hz C) 408 Hz D) 510 Hz E) 153 Hz
Today, the leading hypothesis for the existence of hot Jupiters is that they formed in their outer solar systems and then migrated inward. Why did this hypothesis gain favor over alternative ideas?
What will be an ideal response?
A simple compound microscope normally uses
A) a long focal length objective and a shorter focal length eyepiece. B) a short focal length objective and a longer focal length eyepiece. C) a short focal length objective and a shorter focal length eyepiece. D) a very long focal length objective and a longer focal length eyepiece.
What is the predominant component of Jupiter's atmosphere?
A) hydrogen B) helium C) methane D) ammonia