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A liquid of refractive index 1.5 is pour...

A liquid of refractive index 1.5 is poured into a cyclindrical jar of radius 20 cm upto a height of 20 cm. A small bulb at the centre of bottom glowing. Find area of the liquid surface through which the light of the bulb passes into air.

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To solve the problem step by step, we will follow these steps: ### Step 1: Understand the Problem We have a cylindrical jar with a radius of 20 cm filled with a liquid of refractive index 1.5 up to a height of 20 cm. A bulb is placed at the center of the bottom of the jar, and we need to find the area of the liquid surface through which the light from the bulb can pass into the air. ### Step 2: Identify the Critical Angle The critical angle (c) can be found using the formula: \[ ...
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