Problem: A prism with angles of 60°-60° -60° and refractive index of 1.6 is partially immersed in an oil with n=1.2 as shown. A light beam entering from air at the top (P) strikes point Q at the critical angle. Find the incident angle θ. a. 27.0° b. 16.5° c. 18.5° d. 11.4°

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Problem Details

A prism with angles of 60°-60° -60° and refractive index of 1.6 is partially immersed in an oil with n=1.2 as shown. A light beam entering from air at the top (P) strikes point Q at the critical angle. Find the incident angle θ.

a. 27.0°

b. 16.5°

c. 18.5°

d. 11.4°

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What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Refraction Of Light concept. You can view video lessons to learn Refraction Of Light. Or if you need more Refraction Of Light practice, you can also practice Refraction Of Light practice problems.

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Based on our data, we think this problem is relevant for Professor Mast's class at USF.