Questions from College Physics

Q: A soap film is held vertically in air and is viewed in

A soap film is held vertically in air and is viewed in reflected light as in Figure CQ24.14. Explain why the film appears to be dark at the top. Figure CQ24.14:

Q: In the overhead view of Figure 23.3, the image

In the overhead view of Figure 23.3, the image of the stone seen by observer 1 is at C. Where does observer 2 see the image: at A, at B, at C, at D, at E, or not at all? Figure 23.3:

Q: A person spearfishing from a boat sees a fish located 3 m

A person spearfishing from a boat sees a fish located 3 m from the boat at an apparent depth of 1 m. To spear the fish, should the person aim (a) At, (b) Above, or (c) Below the image of the fish?

Q: True or False: (a) The image of an

True or False: (a) The image of an object placed in front of a concave mirror is always upright. (b) The height of the image of an object placed in front of a concave mirror must be smaller than or eq...

Q: A clear plastic sandwich bag filled with water can act as a

A clear plastic sandwich bag filled with water can act as a crude converging lens in air. If the bag is filled with air and placed under water, is the effective lens (a) Converging or (b) Diverging?

Q: In a two - slit interference pattern projected on a screen,

In a two - slit interference pattern projected on a screen, are the fringes equally spaced on the screen (a) Everywhere, (b) Only for large angles, or (c) Only for small angles?

Q: If the distance between the slits is doubled in Young’s experiment,

If the distance between the slits is doubled in Young’s experiment, what happens to the width of the central maximum? (a) The width is doubled. (b) The width is unchanged. (c) The width is halved.

Q: A Young’s double - slit experiment is performed with three different colors

A Young’s double - slit experiment is performed with three different colors of light: red, green, and blue. Rank the colors by the distance between adjacent bright fringes, from smallest to largest. (...

Q: Suppose Young’s experiment is carried out in air, and then,

Suppose Young’s experiment is carried out in air, and then, in a second experiment, the apparatus is immersed in water. In what way does the distance between bright fringes change? (a) They move farth...

Q: In a single - slit diffraction experiment, as the width of

In a single - slit diffraction experiment, as the width of the slit is made smaller, does the width of the central maximum of the diffraction pattern (a) Become smaller, (b) Become larger, or (c) Rema...