qualitative treatment of simple applications such as real and apparent depth of objects in water and apparent bending of sticks in water.
A ray of light is passing from a transparent medium 1 to another transparent medium 2 (i) Speed up (ii) slows down. In each case, state whether the refractive index of medium 2 is equal to, less than or greater than the refractive index of medium 1.
How is the refractive index of a medium related to the real and apparent depths of an object in that medium?
Fill in the blanks to complete the following sentence:
When light travels from a denser to a rarer medium, its speed ……………….
The speed of lllight in diamond is 125,000 km s-1. What is its refractive index? (speed of light in air = 3 × 108 m s-1).