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प्रश्न
Explain the following term :
Plane mirror
Draw diagram/diagrams to show them.
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उत्तर
Plane mirror: Plane mirror is a highly polished and smooth reflecting surface made from a clear plane glass sheet, usually thin and silvered with suitable reflecting abrasive (for example, mercury) on one side. Once this pasting is done, then the glass becomes opaque but due to the reflecting property of the abrasive, the plane glass sheet becomes a plane glass reflector or a plane glass mirror.
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संबंधित प्रश्न
Fill in the blank
The image formed by a plane mirror is erect and _____
Select the correct alternative
The angle between the incident ray and the ray reflected from the plane mirror is 70°. The angle of incidence will be :
Write three characteristics of the image formed by a plane mirror?
Explain the following term:
Normal Draw
diagram/diagrams to show them.
A ray of light strikes a plane mirror, such that the angle with the mirror is 20°. What is the value of angle of reflection? What is the angle between the incident ray and the reflected ray?
(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).
A boy stands 4 m away from the plane mirror. If the boy moves `1/2` m towards the mirror, what is now the distance between the boy and his image? Give a reason for your answer.
An insect is sitting in front of a plane mirror at a distance of one meter from it.
- Where is the image of insect formed?
- What is the distance between insect and its image?
- State any two characteristics of image formed in a plane mirror.
Write down the letters of the word ‘POLEX’ as seen in a plane mirror, held parallel to the plane of this paper.
Select the correct option:
If an incident ray passes through the centre of curvature of a spherical mirror, the reflected ray will:
