Question

1.Realtion between real depth and virtual depth
2.Total internal reflection
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Answer 1

Answer:

1. Rays of light coming from the coin are bent away from the normal as they leave the water. the virtual depth is the distance of the virtual image. I from the surface of the water. the real depth is the distance of the real object. O from the surface of the water.
2. total internal reflection, in physics, complete reflection of a ray of light within a medium such as water or glass from the surrounding surfaces back into the medium. The phenomenon occurs if the angle of incidence is greater than a certain limiting angle, called the critical angle.

Answer 2

Answer:

1.Rays of light coming from the coin are bent away from the normal as they leave the water. ... The apparent depth is the distance of the virtual image, I from the surface of the water. The real depth is the distance of the real object, O from the surface of the water.

2.Total internal reflection, in physics, complete reflectionof a ray of light within a medium such as water or glass from the surrounding surfaces back into the medium. The phenomenon occurs if the angle of incidence is greater than a certain limiting angle, called the critical angle..