(1)(A) You shine an orange laser (587 nm) on a double slit in an experiment you perform in your physics lab. Measuring with a protractor you see that the interference pattern makes the first fringe at 11.0° with the horizontal. What is the separation between the slits?
(B)What is the separation between two slits for which 650 nm light has its first minimum at an angle of 31.5°?
(C)What is the wavelength of light falling on double slits separated by 2.19 µm, if the third-order minimum is at an angle of 64.0°?
(D)What is the minimum diameter mirror on a telescope that would allow you to see details as small as 5.15 km on the Moon some 384,000 km away? Assume an average wavelength of 567 nm for the light received.
(E)A film of soapy water (n = 1.33) on top of a sheet of Plexiglas (n = 1.51) has a thickness of 264 nm. What wavelength is most strongly reflected if it is illuminated perpendicular to its surface? (This is the apparent color of the soapy film.)
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