(a) What is meant by scattering of light?
(b) Mention the factor on which it depends
(c) Explain why the colour of the sky is blue?
Answers
Answer:
Ansa- ⦁ When sunlight enters the atmosphere of the earth, the atoms and molecules of different gasses present in the air absorb the light. Then these atoms re-emit light in all directions. This process is known as Scattering of light. ⦁ The atoms or particles that scatter light are called scatterers.
Ansb- 1)it is directly proportional to the length of the conductor. 2)It is inversely proportional to the area of cross-section of the conductor. 3)directly proportional to the temperature of the conductor. 4)depends upon the material of the conductor.
Ansc- The sky is blue due to a phenomenon called Raleigh scattering. This scattering refers to the scattering of electromagnetic radiation (of which light is a form) by particles of a much smaller wavelength. ... These shorter wavelengths correspond to blue hues, hence why when we look at the sky, we see it as blue.
Answer:
a) Scattering of light means to throw light in various random directions. Light is scattered when it falls on various types of suspended particles in is path.
b) The factors on which scattering of light depends upon are wavelength of light and size of the particle.
c) Gases and particles in Earth's atmosphere scatter sunlight in all directions. Blue light is scattered more than other colors because it travels as shorter, smaller waves. This is why we see a blue sky most of the time.