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प्रश्न
Select the correct alternative
The property due to which a light ray striking a surface is returned back into the same medium is called
विकल्प
refraction
reflex action
reflection
regression
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उत्तर
reflection
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संबंधित प्रश्न
An object 1.5 cm high when placed in front of a concave. the mirror produces a virtual image 3 cm high. If the object is placed at a distance of 6 cm from the pole of the mirror, calculate:
- the position of the image
- the focal length of the mirror.
An object is placed in front of a convex mirror of focal length 25 cm. By scale, a drawing shows the formation of image and states the nature of image.
Given that v = 10 cm.
Dull materials reflect light.
In a completely dark room, if you hold up a mirror in front of you, will you see a reflection of yourself in the mirror?
Which of the following ray diagrams is correct for the ray of light incident on a lens shown in figure?
 |
 |
| A | B |
 |
 |
| C | D |
What happens when light hits a transparent object?
What kind of surface reflects light?
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.
