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1) A light beam strikes a piece of glass at an incident angle of
degrees. The beam contains two wavelengths, 450.0 nm and 700.0 nm, for which the index of refraction of the glass is 1.4820 and 1.4742, respectively. What is the angle, to three decimal places, between the two refracted beams?
degrees
2) A thin film of alcohol (n=
) lies on a flat glass plate (n=1.51). When monochromatic light, whose wavelength can be changed, is incident normally, the reflected light is a minimum for 512 nm and a maximum for 640 nm. What is the thickness of the film to the nearest tenth of a nm?
3) Parallel waves of light strike a plane of glass (n= 1.52) at an angle of
degrees from the normal. What is the angle to the nearest tenth of a degree of the reflected light?
4) What is the angle to the nearest tenth of a degree of the light passing into the glass in the previous problem?
5) Light of a wavelength of
nm falls on a slit 3.5 µm (micrometer) wide. How far to the nearest tenth of a meter from the central maximum will the first diffraction maximum fringe be if the screen is 10 m away?
6) Two polarizers make an angle of
degrees with each other. If unpolarized light falls on them, to the nearest tenth of a percent, what percent of the light is transmitted through both?
7) When two slits are
microns apart what is the angular separation to the nearest hundredth of a degree between the central maximum and the m = 2 maximum for 550 nm light?
8) What is the wavelength of light to the nearest nm that passes through a spectrometer with a diffraction grating and emerges with the m = 1 maximum at an angle of
degrees if the grating has 5,000 lines/cm?