- #1

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Relevant equations:

sinO = (m + 1/2)x(wavelength) / w

The attempt at a solution:

sinO = (m + 1/2)x(wavelength) / w

sinO = (3 + 1/2)x(633 x 10^-9 m) / (2.2 x 10^-5 m)

O = sin inverse0.100704545 m

O = 5.8 degrees

The third maximum is approx. 6 degrees.

Im not completely sure if this is correct.