Physics Problems 281

Physics Problems 281 - Chapt. 36 Interference 277 a) Draw a...

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Chapt. 36 Interference 277 a) Draw a diagram of the system. b) Solve for θ . c) For the small angle approximation, de±ne an new angle θ ′′ (in terms of both θ and θ ′′ ) such that we you have a formula for θ ′′ that exactly resembles the formula for θ in the exact alignment case. d) Why don’t we ever worry about disalignment in undergraduate experiments? 036 qfull 00700 2 5 0 moderate thinking: FWHM for two slit 7. The intensity function for the far-±eld two-slit interference pattern is I = 4 I 0 r 2 cos 2 ( α ) , where r is the distance from the slits to the screen,
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