A slit has a width of W1 2.3 106 m. When light with a
Chapter 27, Problem 27.72(choose chapter or problem)
A slit has a width of W1 2.3 106 m. When light with a wavelength of 1 510 nm passes through this slit, the width of the central bright fringe on a flat observation screen has a certain value. With the screen kept in the same place, this slit is replaced with a second slit (width W2), and a wavelength of 2 740 nm is used. The width of the central bright fringe on the screen is observed to be unchanged. Find W2. 27.
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