Name the principle employed in a periscope.

One Line Answer

The principle employed in a periscope is successive reflections from two plane mirrors.

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Chapter 6: Light - Reflection of Light [Page 246]

Chapter 6 Light
Reflection of Light | Q 27 | Page 246

Select the correct alternative

A man standing in front of a plane mirror finds his image to be at a distance of 6 meter from himself. The distance of man from the mirror is

How is the position of image formed by a plane mirror related to the position of the object ?

What do you mean by reflection of light?

Explain the following term:

Angle of incidence. Draw diagram/diagrams to show them.

Draw diagrams to show the difference between regular and irregular reflection.

Say TRUE or FALSE

We see a book because it reflects the light that falls on its surface

A ray of light is travelling in a direction perpendicular to the boundary of a parallel glass slab. The ray of light ______.

The light falling on the mirror is called as ______ and the light reflected is called reflected ray.

Plane mirrors are used as looking glass, to reflect light on objects and in periscopes.