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State two uses of a plane mirror.
Copy the figure. By taking two rays from point A, show the formation of image. State four characteristics of the image.
Does the mirror named by you above give real images for all locations of object?
Complete the ray diagram to show the image observed by the eye after reflection in the following figure.
Locate the image termed when the object is placed between two planes as shown in the following figure.
Which of the following ray diagrams is correct for the ray of light incident on a lens shown in figure?
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| A | B |
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| C | D |
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.
