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प्रश्न
State two uses of a plane mirror.
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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.
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संबंधित प्रश्न
Draw a diagram to show the reflection of a light ray incident normally on a plane mirror.
Explain the following term :
Plane mirror
Draw diagram/diagrams to show them.
What is meant by lateral inversion of an image in a plane mirror? Explain it with the help of a ray diagram.
Why is it difficult to read the image of the text of a page formed due to reflection by a plane 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?
An object is kept at 60 cm in front of a plane mirror. If the mirror is now moved 25 cm away from the object, how does the image shift from its previous position?
Two plane mirrors are arranged parallel and facing each other at some separation. How many images are formed for a point object kept in between them? Show the formation of images with the help of a ray diagram
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?
What should be the minimum size of a plane mirror, so that a person 182 cm high can see himself completely?
Identify the following kind of beam of light.
