question_answer

     

Consider the following statement:

The principle of total internal reflection is applicable to explain the                             [NDA]

1. Formation of mirage in desert.

2. Formation of image in microscope.

3. Colour of evening sky.

4. Operation of optical fibres.

Which of the statement given above are correct?

A) 1 and 4

B)      3 and 4

C) 2 and 3            

D)      1 and 2