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Green light has a wavelength of 500 nm in air. (i) Assume green light is reflected from a mirror with angle of incidence 0°. The incident and reflected waves together constitute a standing wave with what distance from one node to the next node? (a) 1000 nm (b) 500 nm (c) 250 nm (d) 125 nm (e) 62.5 nm (ii). The green light is sent into a Michelson interferometer that is adjusted to produce a central bright circle. How far must the interferometer's moving mirror be shifted to change the center of the pattern into a dark circle? Choose from the same possibilities as in part (i). (iii). The green light is reflected perpendicularly from a thin film of a plastic with an index of refraction 2.00. The film appears bright in the reflected light. How much additional thickness would make the film appear dark?
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Chapter 37 Solutions
Physics for Scientists and Engineers, Technology Update, Hybrid Edition (with Enhanced WebAssign Multi-Term LOE Printed Access Card for Physics)
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- Light enters from air into glass (dark blue) with an index of refraction of ng = 1.774 , which is surrounded by a plastic (light blue) with np = 1.427. What is the critical angle (in degrees) for total internal reflection at the glass - plastic interface?arrow_forwardA hang glider is flying at an altitude of H = 120 m. Green light (wavelength = 555 nm in vacuum) enters the pilot’s eyes through a pupil that has a diameter of D = 2.5 mm. The average index of refraction of the material in the eye is approximately n = 1.36. Determine how far apart two point sources must be on the ground if the pilot is to have any hope of distinguishing between them.arrow_forwardInterference effects are produced at point P on a screen as a result of direct rays from a 5.00 x 102 - nm source and reflected rays off a mirror, as shown in Figure P24.67. If the source is L = 1.00 x 102 m to the left of the screen and h = 1.00 cm above the mirror, find the distance y (in millimeters) to the first dark band above the mirror.arrow_forward
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