Where in nature can you find evidence that white sunlight may be made of different colours ?

Why do you not see a spectrum of colours when light passes through a f...

Name some everyday objects : (a) which reflect all the colours in su...

Name the phenomenon which causes the twinkling of stars.

Name two effects produced by the atmospheric refraction.

Which phenomenon makes us see the sun : (a) a few minutes before act...

State whether the following statement is true or false : The planet ...

Name the phenomenon due to which the stars seem higher in the sky than...

Fill in the following blanks with suitable words : We can see the su...

Why do stars seem higher than they actually are ? Illustrate your answ...

Explain why, the sun can be seen about two minutes before actual sunri...

Explain why, if we look at objects through the hot air over a fire, th...

The twinkling of stars is due to atmospheric :

The atmospheric refraction of light causes the twinkling of :

The stars appear higher in the sky than they actually are, due to :

As light from a far off star comes down towards the earth :

We can see the sun before the actual sunrise by about :

Due to atmospheric refraction of sunlight, the time from sunrise to su...

The day is longer on the earth by about 4 minutes because :

We know that light refracts (or bends) when it goes from one medium to...