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प्रश्न
Differentiate between a reflection and a shadow
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उत्तर
| Sr No. | Reflection | Shadow |
| 1. | When light falls on a surface, the direction of ray is changed. This change in direction is known as reflection of light. | Shadow is an image formed by obstruction of light. |
| 2. | Eg.: You see your reflection in a pool of water or mirror. | Eg.: If you place your hand in front of a candle, you will see the image of the hand on the wall. This image will show only the outline of the object placed in front of the light source. |
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संबंधित प्रश्न
How is a plane mirror made ?
Wirte down the letter C and I as seen in a plane mirror.
State whether the following statement is true or false. If false, correct it.
The angle of incidence is the angle made by the incident ray with the plane mirror.
State whether the following statement is true or false. If false, correct it.
The image formed in a plane mirror is the real, erect, and same size as that of the object.
Higher Order Thinking Skills.
When a ray of light passes from air into glass, is the angle of refraction greater than or less than the angle of incidence?
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?
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.
