Consider the following statements:
The principle of total internal reflection is applicable to
explain the
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?

Consider the following statements 1. phiin{phi}" 2."{phi}subephi Which of the statements given above is/are correct?

Consider the following statements 1. The Benguela current had its influence in the formation of Kalahari Desert. 2. The Agulhas currenthadits influencein the formation of Thar Desert. 3. The currents of northern Indian Ocean change their course of flow twice a year. Which of the statements given above is/are correct?

Consider the following statements: A real image 1. can be formed on a screen 2. is always magnified and inverted Which of the statements given above is/are correct?

Consider the following statements : Nitrogen is an essential constituent of 1. soils " " 2. animals 3. plants Which of the statements given above is/are correct ?