In a Young?s double-slit experiment, 633-nm laser light illuminates two slits se

Question

In a Young?s double-slit experiment, 633-nm laser light illuminates two slits separated by a distance of 3.34 X 10^-5 m. (a) Find the angle at which the first order maximum occurs. (b) If the interference pattern is displayed on a screen 1.52 m away, determine the distance from the centerline to the first order maximum. 0.03 . m (c) Find also the angle at which the second-order (m = 2) minimum occurs. Your response differs from the correct answer by more than 10%. Double check your calculations.? (d) Find the distance of that minimum from the centerline. m

Explanation / Answer

I see you already have parts A and B, so here is part C...

Part C)

For minima, apply tan(angle) = (m+.5)(wavelength)/d where m starts at zero, so...

tan(angle) = (1.5)(633 X 10-9)/(3.34 X 10-5)

angle = 1.63o

Part D)

tan(angle) = y/L

tan(1.63) = y/1.52

y = .0432 m

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