Question

1. What is meant by apparent depth or optical depth? Write an expression for it.​

Answer 1

Answer:Apparent depth and real depth - definition

Real Depth is actual distance of an object beneath the surface, as would be measured by submerging a perfect ruler along with it. Apparent depth in a medium is the depth of an object in a denser medium as seen from the rarer medium. Its value is smaller than the real depth.

Δs=h(1-1/υ)

Answer 2

Answer:

Answer:Apparent depth and real depth - definition

Real Depth is actual distance of an object beneath the surface, as would be measured by submerging a perfect ruler along with it. Apparent depth in a medium is the depth of an object in a denser medium as seen from the rarer medium. Its value is smaller than the real depth.

Δs=h(1-1/υ)