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प्रश्न
Differentiate between the reflection of light from a plane mirror and that from a plane sheet of paper.
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उत्तर
Reflection of light from a plane mirror is regular reflection and reflection of light from plane sheet of paper is irregular reflection of light.
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संबंधित प्रश्न
What is meant by lateral inversion of an image in a plane mirror ? Explain it with the help of a diagram.
Draw a diagram to show the reflection of a ray of light using a plane mirror. In the diagram, label the incident ray, the reflected ray, the normal, the angle of incidence and the angle of reflection.
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?
By geometrical construction, find the position of the image in the following figure.
Find the odd one.
sun, candle, torch, pen
Reflection occurs , when the light
Match the following:
| 1. | Vegetable oil | a. | Transparent |
| 2. | Glass | b. | Translucent |
| 3. | Wood | c. | Waterproof |
| 4. | Aluminum foil | d. | Opaque |
You can see a rainbow only when your back is towards the sun.
A burning candle in water
Take a shoe box, open on one side. Place a small lighted candle in it. Place a clear glass sheet (roughly 25 cm × 25 cm) in front of this candle figure. Try to locate the image of the candle behind the glass sheet. Place a glass of water at its position. Ask your friends to look at the image of the candle through the sheet of glass. Ensure that candle is not visible to your friends. Your friends will be surprised to see the candle burning in water. Try to explain the reason.
