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प्रश्न
How is a plane mirror made ?
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उत्तर
To make a plane mirror, a thin piece of glass is taken. One surface of the mirror is made opaque by silvering it. On the top of that, another thin coating of red lead oxide is given which protects the silvering of the mirror.
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संबंधित प्रश्न
Fill in the blank
We are able to see the objects around us due to _________, reflection.
State two uses of a plane mirror.
Explain the following term:
Angle of reflection. Draw diagram/diagrams to show them.
Describe the principle of simple periscope through an outline ray diagram. Give one of its uses.
The angle between an incident ray and the mirror is 350.
(i) What is the angle of incidence?
(ii) What is the angle of reflection?
(iii) What is the total angle turned by the ray of light?
(iv) What is the angle between the incident and the reflected rays?
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.
______Surface reflects the light well.
Match the following:
| 1. | Rubber | a. | Erect |
| 2. | Greased paper | b. | Inverted |
| 3. | Real image | c. | Opaque medium |
| 4. | Virtual image | d. | Translucent medium |
