104 Lloyd's Mirror. In Fig. 35-60, mono- chromatic light of wavelength A diffracts s- through a narrow slit S in an otherwise opaque screen. On the other side, a plane mir- ror is perpendicular to the screen and a dis- tance h from the slit. A viewing screen A is a distance much greater than h. (Because it sits in a plane through the focal point of the lens, screen A is effectively very distant. The lens plays no other role in the experiment and can otherwise be neglected.) Light that travels from the slit directly to A interferes with light from the slit that reflects from the mirror to A. The reflection causes a half- A Mirror Figure 35-60 Problem 104. wavelength phase shift. (a) Is the fringe that corresponds to a zero path length difference bright or dark? Find expres- sions (like Eqs. 35-14 and 35-16) that locate (b) the bright fringes and (c) the dark fringes in the interference pattern. (Hint: Consider the image of S produced by the mirror as seen from a point on the viewing screen, and then consider Young's two-slit interference.)
104 Lloyd's Mirror. In Fig. 35-60, mono- chromatic light of wavelength A diffracts s- through a narrow slit S in an otherwise opaque screen. On the other side, a plane mir- ror is perpendicular to the screen and a dis- tance h from the slit. A viewing screen A is a distance much greater than h. (Because it sits in a plane through the focal point of the lens, screen A is effectively very distant. The lens plays no other role in the experiment and can otherwise be neglected.) Light that travels from the slit directly to A interferes with light from the slit that reflects from the mirror to A. The reflection causes a half- A Mirror Figure 35-60 Problem 104. wavelength phase shift. (a) Is the fringe that corresponds to a zero path length difference bright or dark? Find expres- sions (like Eqs. 35-14 and 35-16) that locate (b) the bright fringes and (c) the dark fringes in the interference pattern. (Hint: Consider the image of S produced by the mirror as seen from a point on the viewing screen, and then consider Young's two-slit interference.)
Physics for Scientists and Engineers, Technology Update (No access codes included)
9th Edition
ISBN:9781305116399
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter37: Wave Optics
Section: Chapter Questions
Problem 37.70AP: Figure CQ37.2 shows an unbroken soap film in a circular frame. The film thickness increases from lop...
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