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As the width of the slit producing a single-slit diffraction pattern is reduced, how will the diffraction pattern produced change?

Compare interference and diffraction.

What happens to the diffraction pattern of a single slit when the entire optical apparatus is immersed in water?

A rectangular slit is twice as wide as it is high. Is the central diffraction peak wider in the vertical direction or in the horizontal direction?

Shown below is the central part of the interference pattern for a pure wavelength of red light projected onto a double slit. The pattern is actually a combination of singleand double-slit interference. Note that the bright spots are evenly spaced. Is this a double-or single-slit characteristic? Note that some of the bright spots are dim on either side of the center. Is this a single-or double-slit characteristic? Which is smaller, the slit width or the separation between slits? Explain your responses

Is higher resolution obtained in a microscope with red or blue light? Explain your answer.

The distance between atoms in a molecule is about \(10^{-8} \mathrm{cm} .\) Can visible light be used to "see" molecules?

A beam of light always spreads out. Why can a beam not be created with parallel rays to prevent spreading? Why can lenses, mirrors, or apertures not be used to correct the spreading?

Crystal lattices can be examined with X-rays but not UV. Why?

How can you tell that a hologram is a true threedimensional image and that those in three-dimensional movies are not?