Questions from College Physics

Q: If laser light is reflected from a phonograph record or a compact

If laser light is reflected from a phonograph record or a compact disc, a diffraction pattern appears. The pattern arises because both devices contain parallel tracks of information that act as a refl...

Q: A ray of light passes from one material into a material with

A ray of light passes from one material into a material with a higher index of refraction. Determine whether each of the following quantities increases, decreases, or remains unchanged. Indicate your...

Q: A plane monochromatic light wave is incident on a double - slit

A plane monochromatic light wave is incident on a double - slit as illustrated in Figure 24.4. If the viewing screen is moved away from the double slit, what happens to the separation between the inte...

Q: If a Young’s experiment carried out in air is repeated under water

If a Young’s experiment carried out in air is repeated under water, would the distance between bright fringes (a) Increase, (b) Decrease, or (c) Remain the same?

Q: Count the number of 180° phase reversals for the interfering rays

Count the number of 180° phase reversals for the interfering rays in (a) Figure CQ24.6a, (b) Figure CQ24.6b, and (c) Figure CQ24.6c. Figure CQ24.6:

Q: Fingerprints left on a piece of glass such as a windowpane can

Fingerprints left on a piece of glass such as a windowpane can show colored spectra like that from a diffraction grating. Why?

Q: Photons with a wavelength of 589 nm in air enter a plate

Photons with a wavelength of 589 nm in air enter a plate of crown glass with index of refraction n = 1.52. Find the (a) Speed, (b) Wavelength, and (c) Energy of a photon in the glass.

Q: A beam of light both reflects and refracts at the surface between

A beam of light both reflects and refracts at the surface between air and glass, as shown in Figure P22.25. If the index of refraction of the glass is ng, find the angle of incidence, θ1,...

Q: Figure P22.26 shows a light ray incident on a series

Figure P22.26 shows a light ray incident on a series of slabs having different refractive indices, where n1 Figure P22.26:

Q: An opaque cylindrical tank with an open top has a diameter of

An opaque cylindrical tank with an open top has a diameter of 3.00 m and is completely filled with water. When the afternoon Sun reaches an angle of 28.0° above the horizon, sunlight ceases to illumin...