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प्रश्न
Match the following.
| 1. | Ratio of height of image to height of object. | Concave mirror |
| 2. | Used in hairpin bends in mountains. | Total internal reflection |
| 3. | Coin inside water appearing slightly raised. | Magnification |
| 4. | Mirage | Convex mirror |
| 5. | Used as Dentist’s mirror. | Refraction |
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उत्तर
| 1. | Ratio of height of image to height of object. | Magnification |
| 2. | Used in hairpin bends in mountains. | Convex mirror |
| 3. | Coin inside water appearing slightly raised. | Refraction |
| 4. | Mirage | Total internal reflection |
| 5. | Used as Dentist’s mirror. | Concave mirror |
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संबंधित प्रश्न
What do we call an electric bulb producing light?
Match the following
| Column A | Column B |
| 1. Transparent object | i. Football |
| 2. Eclipses | ii. Glass |
| 3. Translucent object | iii. Fluorescent tube |
| 4. Luminous object | iv. Tracing paper |
| 5. Non - luminous object | v. Shadows |
Write true or false
Opaque objects do not allow light to pass through them.
Answer the following.
Name some sources of light that are not hot.
When light passes through a prism, it gets separated into ______ colours.
Write whether of the following objects are luminous or non-luminous.
| Object | Luminous/Non-luminous |
| A book | |
| A burning candle | |
| A wax cloth | |
| A pencil | |
| A pen | |
| A light bulb | |
| A tyre | |
| A torch |
The angle of deviation of light ray in a prism depends on the angle of ______.
If the energy of incident beam and the scattered beam is the same, then the scattering of light is called as ______ scattering.
List any five properties of light.
A student observes a tree given in the following figure through a pin hole camera. Which of the diagrams given in the following figure (a) to (d), depicts the image seen by her correctly?
