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प्रश्न
If the angle between the mirror and the reflected ray is 23∘, what is the angle of incidence of the incidence ray?
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उत्तर
`angle r + 23° = 90°`
`=> angle r = 67°`
Using law of reflection, we have
`angle i = angle r = 67°`
संबंधित प्रश्न
Write true or false of the following statement.
The image formed by a plane mirror is real
With the help of diagrams, explain the difference between the regular and irregular reflection.
Differentiate between the reflection of light from a plane mirror and that from a plane sheet of paper.
Write down four characteristics of image formed in a plane mirror.
A converging mirror, forms three times magnified virtual image when an object is placed at a distance of 8 cm from it. Calculate:
- the position of the image
- the focal length of the mirror.
A boy is standing in front of a plane mirror at a distance of 3 m from it.
(i) What is the distance between the boy and his image?
(ii) If the boy moves 1 m backward, find the distance between the image and the boy.
The word PLATE written on a paper is held in front of a plane mirror. Write down the letters as seen in the following case.
The paper is held parallel to the mirror.
Define reflection.
What happens when light hits a transparent object?
