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Physics with MasteringPhysics | 4th Edition | ISBN: 9780321541635 | Authors: James S. Walker
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While wearing your Polaroid sunglasses at the beach, you

Chapter 25, Problem 4CQ

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QUESTION:

Problem 4CQ

While wearing your Polaroid sunglasses at the beach, you notice that they reduce the glare from the water better when you are sitting upright than when you are lying on your side. Explain.

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QUESTION:

Problem 4CQ

While wearing your Polaroid sunglasses at the beach, you notice that they reduce the glare from the water better when you are sitting upright than when you are lying on your side. Explain.

ANSWER:

Step 1 of 3

The Polaroid Sunglasses have a transmission axis in vertical direction to cut off maximum light.

As the sea is horizontal, it has polarization horizontally.When we sit upright, the transmission axis of sunglasses(vertical) becomes perpendicular to the polarization(horizontal) coming from reflected light from horizontal sea.This cancels maximum reflected light from the sea and thus the glare is reduced

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