Choose the BEST answer to the following:A diffraction

Choose the BEST answer to each of the following: Which of these does NOT belong in the family of electromagnetic waves? (a) Light (b) Sound (c) Radio waves (d) X-rays

Light that is not transmitted by opaque materials is (a) reflected or converted to internal energy in the material. (b) mainly reflected. (c) mainly refracted. (d) transmitted at a lower frequency

When the shadow of the Moon falls on Earth, we have a (a) lunar eclipse. (b) solar eclipse. (c) solar eclipse if it’s daytime and lunar eclipse if it’s nighttime. (d) very dangerous event.

Choose the BEST answer to each of the following: Black is the combination of (a) all the colors together. (b) two or more appropriate colors. (c) light when a prism is held upside down. (d) None of these.

Choose the BEST answer to each of the following: To say that a rose petal is red is to say that it (a) absorbs red. (b) reflects red. (c) emits red. (d) transmits red.

Choose the BEST answer to each of the following: The color of light most intense in the solar radiation curve is (a) infrared. (b) red. (c) yellow-green. (d) violet.

Choose the BEST answer to each of the following: When red and blue light are overlapped, the color produced is (a) magenta. (b) yellow. (c) cyan. (d) white

Choose the BEST answer to each of the following: The complementary color of blue is (a) magenta. (b) yellow. (c) cyan. (d) white.

Choose the BEST answer to each of the following: The blueness of the daytime sky is due mostly to light (a) absorption. (b) transmission. (c) reflection. (d) scattering.

Choose the BEST answer to each of the following: The redness of a sunrise or sunset is due mostly to light that hasn’t been (a) absorbed. (b) transmitted. (c) scattered. (d) polarized.

Choose the BEST answer to each of the following: The greenish-blue color of ocean water is due mostly to light that hasn’t been (a) absorbed. (b) reflected. (c) scattered. (d) refracted.

Choose the BEST answer to each of the following: The distance of your image behind a plane mirror is equal to (a) half your height. (b) half your distance from the mirror. (c) your distance in front of the mirror. (d) more than your distance in front of the mirror.

Choose the BEST answer to each of the following: Refraction occurs when a wave crosses a boundary and changes (a) speed and direction. (b) intensity. (c) frequency. (d) amplitude

Choose the BEST answer to each of the following: When white light passes through a prism, the light that bends more than green is (a) red. (b) yellow. (c) blue. (d) None of these.

Choose the BEST answer to each of the following: A rainbow is the result of light in raindrops that undergoes (a) internal reflection. (b) dispersion. (c) refraction. (d) All of these.

Choose the BEST answer to each of the following: A real image can be cast on a screen by a (a) converging lens. (b) diverging lens. (c) Either of these. (d) Neither of these.

When a diver points a flashlight upward toward the surface of the water at an angle \(20^{\circ}\) from the normal, the beam of light (a) totally internally reflects. (b) passes into the air above. (c) is absorbed. (d) None of these.

Choose the BEST answer to each of the following: Huygens’ principle for light is primarily described by (a) waves. (b) rays. (c) particles. (d) photons.

Choose the BEST answer to each of the following: A diffraction grating relies on light (a) interference. (b) amplitudes. (c) variations in brightness. (d) being composed of photons.

Choose the BEST answer to each of the following: When light undergoes interference, it can sometimes (a) build up to more than the sum of amplitudes. (b) cancel completely. (c) Both of these. (d) Neither of these.

Choose the BEST answer to each of the following: Colors in a soap bubble result from light (a) converted to a different frequency. (b) deflection. (c) interference. (d) polarization.

Choose the BEST answer to each of the following: Polarization is a property of (a) transverse waves. (b) longitudinal waves. (c) all waves. (d) None of these.

Choose the BEST answer to each of the following: A hologram best illustrates (a) polarization. (b) diffraction. (c) superposition. (d) electron interference.

Choose the BEST answer to each of the following: In the proportion \(E \sim f\), the f stands for the (a) frequency of light. (b) frequency of sound. (c) frequency of a tuning fork or vibrating string. (d) frictional force.

Choose the BEST answer to each of the following: The energy of an emitted photon is related to its (a) amplitude. (b) polarization. (c) momentum. (d) frequency

Choose the BEST answer to each of the following: Among these colors, the one that has the most energy per photon is (a) red. (b) yellow-green. (c) blue. (d) violet

Choose the BEST answer to each of the following: The red glow in the neon tube of an advertising sign is a result of (a) fluorescence. (b) incandescence. (c) de-excitation. (d) polarization.

Choose the BEST answer to each of the following: All parts of a laser beam have the same (a) frequency. (b) phase. (c) speed. (d) All of these

Choose the BEST answer to each of the following: Planck’s constant can be found by dividing the energy of a photon by its (a) wavelength. (b) frequency. (c) amplitude. (d) None of these.

Choose the BEST answer to each of the following: The model of light most supported by the photoelectric effect is the (a) wave model. (b) particle model. (c) Both of these. (d) Neither of these.