
Look at the diagram given below. It explains the working of a periscope. A periscope makes use of plane mirrors. A simple periscope can be used to see over obstacles such as walls.

a) What is the nature of image formed when we see through a periscope?
b) Give reason for the question asked in part ‘a’.
c) Will the image be larger, smaller or of the same size as the object? Why?


Important Questions on Light-Shadows and Reflection
Look at the mirror image of the palm of the lady.
Why is the image larger in size than her palm?

Look at the mirror image of the palm of the lady.
What would happen if the lady stands at a little farther from the same mirror?

Look at the mirror image of the palm of the lady.
Can you suggest the type of the mirror to find the mirror image of the
i) Smaller size than the object
ii) Same size of the object

Look at the mirror images of the candle.
Can you suggest the type of the mirror to find the mirror image of the same size of the object?
