Q2 of 20 Page 65

Fill in the blanks with suitable words :

Formation of rainbow is due to _____________ .

Formation of the rainbow is due to the Dispersion of the light.


Explanation: Rainbow is formed due to the dispersion of sunlight by raindrops suspended in air. Water drops act like tiny prisms. These water drops refract the sunlight, disperse, then they reflect internally and then refract it again. This is how a rainbow is formed. The figure below shows it in detail.



More from this chapter

All 20 →
2

Fill in the blanks with suitable words :

The type of lens used by watch repairers is ___________.

 2

Fill in the blanks with suitable words :

Bending of light when it passes from one transparent medium to another is called _________.

 3

Answer the following:

Give one reason to prove that light is a form of energy.

 3

Answer the following:

What is the difference between regular and irregular reflections?