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प्रश्न
Define reflection.
उत्तर
The bouncing of light by any smooth or polished surface is called.
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संबंधित प्रश्न
The reflection of light from a wooden surface is _________ reflection.
Describe the principle of simple periscope through an outline ray diagram. Give one of its uses.
Give two uses of convex mirror.
Identify the following kind of beam of light.
Complete the path of incident ray in the following case.
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.