Real and Apparent Depth

A water pond appears to be 3 m deep. If the refractive index of water is 4/3, find the actual depth of the pond.

How is the refractive index of a material related to real and apparent depth?

How are the refractive index of water-related to the real depth and the apparent depth of a column of water?

Water in a pond appears to be only three-quarters of its actual depth.

1. What property of light is responsible for this observation? Illustrate your answer with the help of a ray diagram.
2. How is the refractive index of water calculated from its real and apparent depth?

A coin is placed at the bottom of a beaker containing water (refractive index = 4/3) at a depth of 16 cm. By what height the coin appears to be raised when seen from vertically above?

Show the path of a ray of light when it travels from air into water, the angle of incidence being 30°. Mark the angle of incidence and the corresponding angle of refraction.

A coin kept inside water [µ = 4/3] when viewed from air in a vertical direction appears to be raised by 3.0 mm. Find the depth of the coin in water.

With the help of a well-labelled diagram show that the apparent depth of an object, such as a coin, in water is less than its real depth.