Question

A student observed the sky at night and experienced that stars were sometimes

brighter, and some other time fainter.

( i ) What do we call this phenomena experienced by the student ?

( ii ) Name any two factors responsible for the above phenomena experienced by

the student .

( iii ) Draw a diagram to exhibit the phenomena experienced by the student.​

Answer 1

Answer:

please follow Varun Jha 41 please please please if you follow them I will follow you please please please please follow that in my answers a question is answered by them in my

Answer 2

The answers are as follows:

• This phenomena is known as the twinkling effect of stars in which sometimes a star appears to be brighter while it appears fainter the other time.
• Any two factors that are responsible for this phenomena are: The first one is the changing position of the earth and the stars and the second one is the multiple refraction faced by the light rays coming from the stars at different angles because of the Earth's atmosphere.
• The twinkling phenomena is due to refraction by the atmosphere and the diagram is attached with the answer.