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AE Physics Course
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The wavelength of red helium–neon laser light in air is 632.8 nm. What is its wavelength in glass that has an index of refraction of 1.50?
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A glass optical fiber (n = 1.50) is submerged in water (n = 1.33). What is the critical angle for light to stay inside the fiber?
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Find the energy of a photon having a frequency of 5.00 × 10^17 Hz. Express your answers in units of electron volts, noting that 1 eV = 1.60 × 10^-19 J. Consider h=6.63× 10^-34 J·s.
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Light passes from a material with index of refraction 1.3 into one with index of refraction 1.2. Compared to the incident ray, what happens to the refracted ray?
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In the movies, you sometimes see an actor looking in a mirror and you can see his face in the mirror. It can be said with certainty that during the filming of such a scene, the actor sees in the mirror:
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A light wave moves between medium 1 and medium 2. Which of the following are correct statements relating its speed, frequency, and wavelength in the two media, the indices of refraction of the media, and the angles of incidence and refraction? More than one statement may be correct.
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The level of water in a clear, colorless glass can easily be observed with the naked eye. The level of liquid helium in a clear glass vessel is extremely difficult to see with the naked eye. Why that?
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A light ray travels from vacuum into a slab of material with index of refraction n1 at incident angle θ with respect to the surface. It subsequently passes into a second slab of material with index of refraction n2 before passing back into vacuum again. The surfaces of the different materials are all parallel to one another. As the light exits the second slab, what can be said of the final angle φ that the outgoing light makes with the normal?
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A light ray initially in water enters a transparent substance at an angle of incidence of 37.0°, and the transmitted ray is refracted at an angle of 25.0°. The speed of light in the transparent substance is:
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The wavelength of red helium–neon laser light in air is 632.8 nm. What is its speed in the glass?
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