Answer Happy

5. has more options: C: dispersion and refractuon D: interférence and diffraction
D: interférence and diffraction
1. Monochromatic light hits an opaque sheet with two small holes in it. What will you see on a paper screen placed some distance beyond? (Assume the distance between the holes is of the order of the wavelength). a. One bright spot b. Two bright spots c. A whole row of spots d. No light will reach the screen 2. If a beam of ultraviolet light and infrared light have the same intensity, which statement must be true a. They must have the same number of photons b. The ultraviolet beam must have more photons c. The infrared beam must have more photons. 3 3. Radio waves are diffracted by large objects such as buildings, whereas visible light is not noticeably diffracted. Why is this? a. Radio waves are unpolarized, whereas visible light is normally polarized. b. The wavelength of visible light is much smaller than the wavelength of radio waves. C. The wavelength of visible light is much greater than the wavelength of radio waves. d. Radio waves are coherent and visible light is usually not coherent. 4. Two identical metal bars are heated up until they are both glowing. One of them is "red hot" and the other is "blue hot." Which one is hotter? a. the red one b. the blue one C. We cannot tell 5. Rainbows exhibit the separation of white light into its constituent colors, called because of differing amounts of for