As shown in figure, a light ray is incident normal to on one face of a 30 deg 60 deg 90 deg block of dense flint glass (a prism) that is immersed in water (a) Determine the exit angle Icirc cedil 4 of the ray (b) A substance is dissolved in the water to increase the index of refraction At what value of n2 does total internal reflection cease at pointP 60 0 30 0

Question: As shown in figure, a light ray is incident normal to on one face of a 30°60°90° block of dense flint glass (a prism) that

As shown in figure, a light ray is incident normal to on one face of a 30°€“60°€“90° block of dense flint glass (a prism) that is immersed in water.
(a) Determine the exit angle Î¸4 of the ray.
(b) A substance is dissolved in the water to increase the index of refraction. At what value of n2 does total internal reflection cease at pointP?

60.0 30.0

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