A light ray is incident normally to the long face (the hypotenuse)of a 45°–45°–90° prism surrounded by air, as shownin Figure 22.26b. Calculate the minimum index of refractionof the prism for which the ray will totally internally reflect ateach of the two sides making the right angle.

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Asked Dec 25, 2019
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A light ray is incident normally to the long face (the hypotenuse)
of a 45°–45°–90° prism surrounded by air, as shown
in Figure 22.26b. Calculate the minimum index of refraction
of the prism for which the ray will totally internally reflect at
each of the two sides making the right angle.

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Expert Answer

Step 1

write the expression for...

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sin i _n sin r m

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