The Michelson interferometer can be used to measure the index of refraction of a gas by placing an evacuated transparent tube in the light path along one arm of the device. Fringe shifts occur as the gas is slowly added to the tube. Assume 580-nm light is used, the tube is 5.40 cm long, and 152 fringe shifts occur as the pressure of the gas in the tube increases to atmospheric pressure. What is the index of refraction of the gas? Hint: The fringe shifts occur because the wavelength of the light changes inside the gas-filled tube. (Give your answer to five decimal places.)

Components of some computers communicate with each other through optical fibers having an index of refraction n = 1.65. What time in nanoseconds is required for a signal to travel 0.17 m through such a fiber?  ns

A light ray is incident at 45° on a glass block immersed inside a liquid of refractive index nL = 1.33 as shown in the figure below. In this configuration, the refractive ray skims the bottom surface. Determine the refractive index of the glass, ng. ng 45° ng = 1.63 ng = 1.7 ng = 1.48 ng = 1.51 O ng = 1.57

Information is stored on an audio compact disc, CD-ROM, or DVD disc in a series of pits on the disc. These pits are scanned by a laser beam. An important limitation on the amount of information that can be stored on such a disc is the width of the laser beam. Explain why this should be, and explain how using a shorter-wavelength laser allows more information to be stored on a disc of the same size. With which color of light can the Hubble Space Telescope see finer detail in a distant astronomical object: red, blue, or ultraviolet? Explain your answer.

You stand on a straight desert road at night and observe a vehicle approaching. This vehicle is equipped with two small headlights that are 0.635 m apart. At what distance, in kilometers, are you marginally able to discern that there are two headlights rather than a single light source? Take the wavelength of the light to be 537 nm and your pupil diameter to be 5.17 mm.

A plano-convex lens with radius of curvature R = 3.2 m is in contact with a flat plate of glass. A light source and the observer's eye are both close to the normal, as shown in the figure below. The radius of the 51st bright Newton's ring is found to be 9.4 mm. What is the wavelength of the light produced by the source? nm 2//1 Need Help? Read It 8:36 PM 4/11/2021

A diffraction grating with unknown number of lines per mm is illuminated by light at a wavelength = 633 nm and the first order diffraction pattern is seen at an angle B = 50.0°. Light of a second wavelength is shone onto the grating, whose second order diffraction pattern is seen at y = 60.0°. What is the wavelength of this second beam? 358 nm 392 nm 716 nm 548 nm 272 nm

A monochromatic beam of light in air has a wavelength of 589 nm in air. it passes through Carbon disulfate (n=1.63) and then through glass (=1.52). what is its wavelength in glass? Group of answer choices 421 nm 388 nm 487 nm 361 nm

A ray of light in air enters a 1.00-cm thick pane of glass at a 50° angle to the surface normal. The sides of the glass are parallel to each other. The light emerges from the other side displaced 0.615 cm from the place it would have emerged if it did not refract. What is the index of refraction of the glass? O 1.94 O 1.14 O 1.59 O 1.41 O 1.53 O 1.35 O 1.28 O 1.72 O 1.65 O 1.46

1. A flashlight held 1.3 m above the surface of a water tank shines a beam of light on the water (index of refraction n 1.33). The light hits the water 2.7 m away from the edge of the tank, where the flashlight is held. The water tank is 2.1 m deep. (a) What is the incident angle relative to the normal? (b) What is the transmitted angle relative to the normal? (c) Where does the light ray hit the bottom of the water tank, mea- sured from the edge of the tank where the flashlight is held? light ray 2.7 m d=? = water tank 1.3 m 2.1 m