Jee Main
Geometrical Optics
JEE Main 2022 (Online) 26th June Evening Shift
INTEGER+4 / -12022
A small bulb is placed at the bottom of a tank containing water to a depth of \(\sqrt7\) m. The refractive index of water is \({4 \over 3}\). The area of the surface of water through which light from the bulb can emerge out is x\(\pi\) m2. The value of x is __________.