HW 8 help please

ofS O zoom + Homework 8: Ch 22 1. Which one of the following phrases most accurately describes the term wave front? a. the surface of a plane mirror the surface of a convex mirror a surface upon which a wave is incident a su Place of constant phase within a wave a surface that is parallel to the direction of wave propagation sneer 2. The bending of light as it moves from one medium to another with differing indices of refraction is due to a change in what property of the light? a. Amplitude b. Period c. Frequency d. Speed e. Color 3. The figure shows the path of a ray of light as it travels through air and crosses a boundary into water. The index of refraction of water for this light is 1.33. 60" I a. What is the speed of this ray of light as it travels through the water? b. What is the angle of refraction for this situation? ofS O ZOOM + 4. An xiray photon has a wavelength Df1.00)t10'10 m. a. What is the energy in joules (J) of this xray photon? b. What is this energy in electron volts (eV)? c. If more penetrating xirays are desired, should the wavelength be increased or decreased? Explain. d. If more penetrating x-rays are desired, should the frequency be increased or decreased? Explain. 5. The two mirrors in the gure meet at a right angle. The beam of light in the vertical plane P strikes mirror 1 as shown. Page 2 of 5 ZOOM 5. The two mirrors in the figure meet at a right angle. The beam of light in the vertical plane P strikes mirror 1 as shown. Mirror 140.09 2 1.25 m/4 Mirror a. Determine the distance the reflected light beam travels before striking mirror 2. b. In what direction does the light beam travel after being reflected from mirror 2? 2Page 3 of 5 ZOOM 6. A laser beam is incident at angle 30.0 to the vertical onto a solution of corn syrup in water. a. If the beam is refracted to 19.240 to the vertical, what is the index of refraction of the syrup solution? b. Suppose the light is red with a wavelength of 632.8 nm in vacuum. Find its wavelength in the syrup solution. c. Find the red beam's frequency in the syrup solution. d. Find the red beam's speed in the syrup solution. 7. Light containing wavelengths 400.0 nm, 500.0 nm, and 650.0 nm is incident from air on a block of crown glass at an angle of 25.0. a. Are all of the colors refracted alike, or is one color more bent than the others? Explain.Page 3 of 5 ZOOM 7. Light containing wavelengths 400.0 nm, 500.0 nm, and 650.0 nm is incident from air on a block of crown glass at an angle of 25.0. a. Are all of the colors refracted alike, or is one color more bent than the others? Explain. b. Calculate the angle of refraction in each case to verify your answer. Note: you will need to find the index of refraction of crown glass for each of the wavelengths to find the angle of refraction in each case. 3) ofS O ZOOM + B. The light beam shown in the figure below makes an angle of 20.0 with the normal line, NN', in the linseed oil. Determlne the angles 3 and 6' if linseed oil has an index of refraction of 1.48. 9. The index of refraction for crown glass is 1.512 at a wavelength of 660 nm (red) and 1.530 at a wavelength of 410 nm (violet). a. If both wavelengths are incident on a slab of crown glass at the same angle of incidence of 60.0\Page 5 of 5 ZOOM 10. Consider a light ray traveling between air and a diamond cut in the shape shown in the figure. Diamond has an index of refraction of 2.419. 35.0 a. Find the critical angle for total internal reflection for light in the diamond incident on the interface between the diamond and the outside air. b. Consider the light ray incident normally on the top surface of the diamond, as shown in the figure. Show that the light traveling toward point P in the diamond is totally reflected. c. If the diamond is immersed in water, find the critical angle at the diamond-water interface, where water has an index of refraction of 1.33. d. When the diamond is immersed in water, does the light ray entering the top surface in the figure undergo total internal reflection at P? Explain.O zoom c. If the diamond is immersed in water, find the critical angle at the diamondwater interface, where water has an index of refraction of 1.33. d. When the diamond is immersed in water, does the light ray entering the top surface in the gure undergo total internal reflection at P? Explain. e. If the light ray entering the diamond remains vertical as shown in the figure, which way should the diamond in the water be rotated about an axis perpendicular to the page through 0 so that light will exit the diamond at P? t. At what angle in the rotation of part {e} will light rst exit the diamond at point P? {