Apoint source of light is submerged 2.9 m below the surface of a lake and emits rays in all directions. on the surface of the lake, directly above the source, the area illuminated is a circle. what is the maximum radius that this circle could have? take the refraction index of water to be 1.333.

The maximum radius of the circle is 3.288 m.

Explanation:

Given that,

Refraction index = 1.333

Distance = 2.9 m

We need to calculate the critical angle

Using formula of critical angle

Put the value into the formula

We need to calculate the maximum radius of the circle

Using formula of radius

Put the value into the formula

Hence, The maximum radius of the circle is 3.288 m.

the plateau is likely to turn into a desert do to corrosion.

this is poiselle's equation from fluid mechanic in physics. mech eng