A small bulb is placed at the bottom of a tank containing water to a depth of \sqrt{7} {\m}. The refractive index of water is \frac{4}{3}. The area of the surface of water through which light from the bulb can emerge out is x \pi m^2. The value of x is____ [26-Jun-2022-Shift-2]

Ray Optics and Optical Instruments Part 2

Section: Physics

Question : 83 of 100

Marks: +1, -0

A small bulb is placed at the bottom of a tank containing water to a depth of √7m. The refractive index of water is ‌

. The area of the surface of water through which light from the bulb can emerge out is xπm2. The value of x is____

[26-Jun-2022-Shift-2]

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