The diffraction gratings discussed in the text are transmission gratings because
ID: 1915553 • Letter: T
Question
The diffraction gratings discussed in the text are transmission gratings because light passes through them. There are also gratings in which the light reflects from the grating to form a pattern of fringes. Equation 27.7 also applies to a reflection grating with straight parallel lines when the incident light shines perpendicularly on the grating. The surface of a compact disc (CD) has a multicolored appearance because it acts like a reflection grating and spreads sunlight into its colors. The arms of the spiral track on the CD are separated by 1.1 x 10-6 m. Using Equation 27.7, estimate the angle that corresponds to the first-order maximum for a wavelength of (a) 657 nm (red) and (b) 429 nm (violet).Explanation / Answer
eqution 27.7? which book and which edition much confusing