QJEEM22Ph054e: JEE Main 2022 Physics - Class 12 JEEM22Ph054e Solution: A small bulb is placed at the bottom of a tank containing water …

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$$\pi$$ m². The value of x is __________.