Question

(a) What is meant by scattering of light?
(b) Does the shadow really vanish in the
zero shadow condition?
© Will the laser beam be seen if it
ans passes through a glass box which
contains a lighted incense stick?​

Answer 1

Answer:

1. The scattering of light is the phenomenon by which a beam of light is redirected in different directions on interacting with the particles present in the medium
2. No it will not vanish
3. Yes, the laser beam will be seen if it passes through a glass box which contains a lighted incense stick.

Explanation:

1. The scattering of light is the phenomenon by which a beam of light is redirected in different directions on interacting with the particles present in the medium. The sky appears blue because the fine particles in the atmosphere scatter blue light the most among all the components of white light.
2. When the vertical object is placed in the sun around noontime, the shadow will get shorter and disappeared. It reappears in about a minute's time. It can also be said that the shadow appears exactly under the object. Hence the shadow will not vanish.
3. Yes, the laser beam will be seen if it passes through a glass box which contains a lighted incense stick. This is because the laser beam will be scattered by the smoke particles formed in the glass box due to burning of incense stick. Due to this scattering, the path of laser beam will become visible.

Answer 2

Answer:

Answer a) Air is a mixture of very fine particles of some gases, dust, smoke and moisture. When Ray's of light fall on this minute particles , the particles spread the light in all the directions. This natural phenomenon is called scattering of light.

Answerb) On the zero shadow day , at noon , the sun reached exactly over our head . Thus , the shadow of our body in the standing position is formed right below the base of our feet . Therefore the shadow does not really vanish in the zero shadow day .

Ans c) scattering of light required for a ray of light to be visible. There are tiny particles to the inscene stick scattered in the closed glass box, due to which laser gets scattered . Hence the laser beam is seen .