A monochromatic (single frequency, single wavelength) light ray in air (n = 1) enters a glass prism (n = 1.5). In the glass prism
a. both the frequency and the wavelength are the same as in air
b. the frequency is the same, but the wavelength is greater than in air.
c. the frequency is the same, but the wavelength is smaller than in air.
d. the wavelength is the same, but the frequency is greater than in air.
e. the wavelength is the same, but the frequency is smaller than in air.
c
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Two stars of masses M and 6M are separated by a distance D. Determine the distance (measured from M) to a point at which the net gravitational force on a third mass would be zero.
A. 0.41 D B. 0.33 D C. 0.37 D D. 0.29 D E. 0.14 D
If Jupiter were about 80 times more massive than it is, nuclear fusion should have been possible, making it a small star. What might have been the most likely effect on the Earth?
A) The gravitational pull might have prevented the Earth settling into a stable orbit, which would have prevented the development of life on Earth. B) Jupiter's moons would have been likely to develop life, which would have competed with life on Earth. C) The extra radiation from a second star in the solar system would have prevented life forming on Earth. D) Jupiter's magnetic field would have been much larger, disrupting Earth's magnetic field. E) Nothing because Jupiter is so much further from the Earth than the Sun is.
If the wavelength of light in vacuum is 469 nm, what is the wavelength of light in a thin film of index of refraction 1.42?
A) 110 nm B) 220 nm C) 330 nm D) 440 nm E) 550 nm
A 14-mm tall postage stamp is 4.0 mm from a converging lens. If the image of the stamp is 4.0 mm tall, how far is it from the lens?
A) 14 mm B) 8.7 mm C) 1.4 mm D) 1.1 mm