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प्रश्न
State three ways in which the image formed in a plane mirror differs from the image formed in a pin hole camera.
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उत्तर
Image formed by plane mirror :
- Image formed by plane mirror is virtual.
- It can not be obtained on the screen.
- Size of image is same as that of the object.
- Image appears to be inverted only on the vertical axis.
Image formed by Pinhole camera :
- Image formed by pinhole camera is real.
- It can be obtained on the screen.
- Size of the image is smaller than the object.
- Image appears to be inverted on both the vertical axis and horizontal axis.
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संबंधित प्रश्न
State the characteristics of the image formed by a plane mirror.
An object is placed 2 cm from a plane mirror. If the object is moved by 1 cm towards the mirror, what will be the distance between the object and its new image?
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?
Copy the figure and complete it, by drawing two rays to show the formation of the image of the object AB. State the size, position and nature of image formed.
Define reflection.
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 ray of light is travelling in a direction perpendicular to the boundary of a parallel glass slab. The ray of light ______.
The light falling on the mirror is called as ______ and the light reflected is called reflected ray.
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.
