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प्रश्न
उत्तर
Difference between convergent and a divergent beam of light.
| Convergent beam | Divergent beam |
| 1. Rays of light converge to a point as the beam progresses | Rays of light diverge from each other as the beam progresses |
| 2. The rays concentrate at a point | The rays emerging from a point source |
| 3. A parallel beam of light converges on passing through a convex lens | A parallel beam of light diverges on passing through a concave lens |
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संबंधित प्रश्न
Write true or false of the following statement.
The image formed by a plane mirror can be obtained on a screen.
Fill in the blank
We are able to see the objects around us due to _________, reflection.
Differentiate between the reflection of light from a plane mirror and that from a plane sheet of paper.
A ray is incident on a plane mirror . Its reflected ray is perpandicular to the incident ray . Find the angle of incidence .
State whether the following statement is true or false. If false, correct it.
The image formed in a plane mirror is the real, erect, and same size as that of the object.
When a ray of light strikes a plane mirror at an angle of 150 with the mirror, what will be the angle through which the ray will deviate? Illustrate with a ray diagram in the following figure.
Materials which reflect the light well are called ______.
Play with a mirror
Write your name with a sketch pen on a thin sheet of paper, polythene or glass. Read your name on the sheet while standing in front of a plane mirror. Now look at your image in the mirror.
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.
