- 1 (113.45 KiB) Viewed 36 times
17.38 A plane monochromatic light wave of wavelength λ=5.0×10−7 m is incident perpendicularly on an opaque screen that has an aperture of the shape shown in Fig. 17-45. The radius of the inner circle is 10−3 m and that of the outer circle is 1.41×10−3 m. (a) Compute the amplitude and the intensity of the optical disturbance at a point P on the axis of the circles. 2 m from the screen, relative to the values one would obtain in the absence of the screen. (b) Determine the phase of this disturbance relative to that of the disturbance one would observe at P without the screcn.