Advertisements
Advertisements
प्रश्न
Name a few living things which emit light.
Advertisements
उत्तर
Jugnu and firefly.
APPEARS IN
संबंधित प्रश्न
Write true or false of the following statement.
The moon is a natural source of light.
Explain the difference between a transparent, a translucent, and an opaque medium. Give two examples of each.
Tick the correct answer.
A tube light is a
Fill in the blank
A ............. is formed when the path of light is obstructed by an ..............
Write true or false
Opaque objects do not allow light to pass through them.
________ objects allow all the light to pass through them.
In going from a rarer to denser medium, the ray of light bends ______.
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 |
If VB, VG, VR be the velocity of blue, green, and red light respectively in a glass prism, then which of the following statement gives the correct relation?
State Rayleigh’s law of scattering.
