1. Consider the following:
A 632 nm (red) laser hits a diffraction grating with 100 slits per mm. A screen/wall is 1-m away.
a. What is the spacing (in m) between each of the slits (or openings)?
b. What will be the angle of diffraction for a first-order (n = 1) image?
c. How far from the central image (n = 0) will the first-order image be from the central image? Hint: use trig (SOH CAH TOA).
d. Is there a second order image (n = 2)? If so, what is the angle of diffraction?
e. Is there a third order image? What is the maximum number of orders of images seen? Hint: consider that the maximum diffraction angle is 90 degrees.
2. Find out something about X-ray diffraction and what it is useful in determining.
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