Question

You shine light of various wavelengths through slits that are 86.5 µm apart, and the view...

You shine light of various wavelengths through slits that are 86.5 µm apart, and the view the resulting interference pattern on a screen that is 2.5 m away.

(a) Calculate the angle and screen location of the fourth-order minimum for blue light with a wavelength of 480 nm.

θyellow = °

yyellow = cm

(b) At what angle and screen location would the fourth-order minimum occur for red light with a wavelength of 725 nm?

θred = °

yred = cm

(c) What wavelength would you need to use to produce a fourth order minimum midway between those of the blue and red light?

λ = nm

(d) What is the highest order minimum you can produce with light of this wavelength?

m ≤

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