Quiz_23a - the bright fringes? Since the condition for a...

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Physics 241 –Quiz 23a – April 22, 2008 a) Decreasing slit separation b) Moving the screen further from the slits c) Increasing the wavelength of light d) Submerging the entire apparatus in water (assuming that the experiment can still be performed properly in water) e) Decreasing the width of each slit In Young’s two-slit interference experiment, which of the following will decrease the spacing between
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Unformatted text preview: the bright fringes? Since the condition for a bright fringe is d sin m = m , in order to decrease the fringe separation, you must move the screen closer to the slits or decrease m-1 . To do the latter, you must either increase d or decrease . Submerging the apparatus in water has the effect of changing to /1.33, and thus it accomplishes this....
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This note was uploaded on 07/29/2008 for the course PHYS 241 taught by Professor Wei during the Spring '08 term at Purdue University-West Lafayette.

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