Advertisements
Advertisements
प्रश्न
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.
Advertisements
उत्तर
A Burning candle in water
Materials:
- A shoe box, open on one side
- A small lighted candle
- A clear glass sheet (approximately 25 cm × 25 cm)
Procedure:
- Place the small lighted candle inside the shoe box.
- Position the clear glass sheet vertically in front of the candle.
- Look through the glass sheet and try to locate the image of the candle behind the glass.
Observation:
- When you look through the clear glass sheet, you will see the image of the candle behind the glass.
Explanation:
- The clear glass sheet acts as a transparent medium, allowing light to pass through while slightly refracting it.
- The image of the candle appears to be located behind the glass sheet due to the refraction of light as it passes through the glass.
Conclusion:
- By using a clear glass sheet in front of a lighted candle, you can observe the formation of an image behind the glass. This demonstrates the principles of light refraction and image formation through transparent materials.
संबंधित प्रश्न
State two uses of a plane mirror.
Define Regular reflection.
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.
Which of the following ray diagrams is correct for the ray of light incident on a lens shown in figure?
 |
 |
| A | B |
 |
 |
| C | D |
Which position of the object will produce a magnified virtual image, if a concave mirror of focal length 15 cm is being used?
Which of the following can make a parallel beam of light when light from a point source is incident on it?
Suppose we wish to obtain the real image of a distant tree. Explain two possible ways in which we can do it.
The light falling on the mirror is called as ______ and the light reflected is called reflected ray.
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.
