Advertisements
Advertisements
प्रश्न
State two uses of a plane mirror.
Advertisements
उत्तर
Two uses of plane mirror:
- In barber's shop for seeing the hairs at the back of head, two mirrors facing each other are fixed on opposite walls at the front and back of the viewer.
- In solar heating devices such as a solar cooker, solar water heater, etc., a plane mirror is used to reflect the incident light rays from sun on the substance to be heated.
APPEARS IN
संबंधित प्रश्न
Write true or false of the following statement.
When a light ray is reflected from a wall, the angle of incidence is not equal to the angle of reflection.
The diagram in fig. shows an incident ray AO and the normal ON on a plane mirror. Draw the reflected ray. State the law you use to draw the direction of the reflected ray.
The image formed by a plane mirror is :
A man standing in front of a plane mirror finds his image at a distance 6 metre from himself. What is the distance of man from the mirror?
An insect is sitting in front of a plane mirror at a distance 1 m from it.
(a) Where is the image of the insect formed?
Prove experimentally that images are formed as far behind in a plane mirror as the object is in front of it.
(a) What do you understand by the term lateral inversion?
(b) A printed card has letters PHYSICS. By drawing the diagram show the appearance of the letters. (No ray diagram is required).
Write down the letters of the word ‘POLEX’ as seen in a plane mirror, held parallel to the plane of this paper.
Identify the following kind of beam of light.
