Study the following incident.
Swara and Yash were looking in a water
filled vessel. They could see their images
clearly in the still water. At that instant,
Yash threw a stone in the water. Now
their images were blurred. Swara could
not understand the reason for the blurring
of the images.
Explain the reason for blurring of the
images to Swara by answering the
following question.
i. Is there a relation between the reflection
of light and the blurring of the images?
ii. Which types of reflection of light can
you notice from this?
iii. Are laws of reflection followed in
these types of reflection?
Answers
Answer:
Yes, there is a relation between the reflection of light and the blurring of the images.
Initially, the water was still, and its surface was smooth. Thus, a regular type of
was taking place from its surface, i.e. all the light rays coming from Swara's body or Yash's body reflected in the same direction on hitting the water surface and reached our eyes. Because of this, we saw a clear image.
But when Yash throw a stone in the water, the water surface became rough due to which irregular type of reflection of light occurred on its surface i.e. all the light rays coming from Swara's body or Yash's body reflected in different directions on hitting the water surface. Thus, only some part of the reflected rays reached our eyes. Because of this, we see a blurred image.