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प्रश्न
A light ray is incident normally on a plane mirror. What is the direction of reflected ray? Show it on a diagram.
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उत्तर
Same as the incident ray
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संबंधित प्रश्न
Fill in the blank
A plane mirror _________ reflects 100 percent light falling on it.
You are standing at a distance of 2 meters from a plane mirror.
What is the distance of your image from the mirror?
Copy the figure. By taking two rays from point A, show the formation of image. State four characteristics of the image.
The reflection of a ray of light (OA) normally incident on a plane mirror is shown below
What are the angles of incidence and reflection?
State whether the following statement is true or false. If false, correct it.
If the incident ray makes an angle of Xo with the normal, then the reflected ray is 2Xo.
Find the odd one.
sun, candle, torch, pen
Match the following:
| 1. | Vegetable oil | a. | Transparent |
| 2. | Glass | b. | Translucent |
| 3. | Wood | c. | Waterproof |
| 4. | Aluminum foil | d. | Opaque |
What is Translucent objects? Give an example.
Plane mirrors are used as looking glass, to reflect light on objects and in periscopes.
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.
