Advertisements
Advertisements
प्रश्न
State Rayleigh’s law of scattering.
उत्तर
Rayleigh’s scattering law states that “The amount of scattering of light is inversely proportional to the fourth power of its wavelength”.
Amount of scattering s∝ `1/4`
APPEARS IN
संबंधित प्रश्न
Select the correct alternative.
The luminous body is
What do we call a substance through which light passes? Give an example of such a substance.
Why do objects in a room become visible even if sunlight does not enter it?
Name a few living things which emit light.
Write the names of some transparent objects.
________ objects allow all the light to pass through them.
Write about two everyday situations that tell you that light travels in a straight line.
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 |
State whether the following statement is True or False
An object can be seen only if it emits light.
What is light?