
Describe a simple experiment (with labeled diagram) to show that light travels in a straight line.

Important Questions on Light, Shadows and Reflections
Samir has made holes in three cardboards of equal size. He then mounts them on a table in such a manner that they are at the same height and in a straight line. He can see the point of the pencil on the opposite side now through the hole of first board. What will happen if he disturbs one of the boards from its position?

The girl in the figure is able to see the dog because :



Trisha says what we see in mirror is an image, while Raman says what we see in mirror is a shadow. Both want to know who is correct so they go to their elder brother Kunal. Kunal explained the formation of image and shadow properly.
Answer the following question based on the above information :
What are the values noticed in Kunal in doing such job?

Trisha says what we see in mirror is an image, while Raman says what we see in mirror is a shadow. Both want to know who is correct so they go to their elder brother Kunal. Kunal explained the formation of image and shadow properly.
Answer the following question based on the above information :
Who is correct? Trisha or Raman. Explain with reason.
