In a Young\'s double-slit experiment, the angle of the second-order bright fring

Question

1. In a Young's double-slit experiment, the angle of the second-order bright fringe is 2.0o. If the slit separation is 3x10-5m, what is the wavelength of the light?
2. At what angle will 640nm light produce a second-order maximum when falling on a grating whose slits are 1.08

1. In a Young's double-slit experiment, the angle of the second-order bright fringe is 2.0o. If the slit separation is 3x10-5m, what is the wavelength of the light?
2. At what angle will 640nm light produce a second-order maximum when falling on a grating whose slits are 1.08

Explanation / Answer

1.

lambda = dsin(?)/m = 593.29 nm

3.

nm 10^-9 m
lambda= 599nm
theta= 17.2

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