A Light Ray Passes from Air Through a Thin Plastic

question 15

Multiple Choice

A light ray passes from air through a thin plastic slab (n = 1.77) with parallel sides.If the ray in air makes an angle of 49° with the normal after leaving the slab,what is the angle of incidence for the ray in air as it impinges upon the other side of the slab?

• A)25°
• B)49°
• C)14°
• D)28°
• E)​87°

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Buffalo Meat

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The situation in which the quantity of a product supplied exceeds the quantity demanded at the current price; often leads to downward pressure on prices.

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A situation in which the demand for a product or service exceeds the supply available at a specific price.

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