Why does the sky appear to be blue while the clouds appear white ?

In activity 1, why does the portion of the pencil inside the water appears to be thicker and broken near the surf ace of water?

When does urine appear deeply coloured?

Why does a body appear red hot where the temperature is around 800°C.

Why does different colors appear black in the darkness or dim light?

True coelom appeared first in

To an observer on the earth the stars appear to twinkle. This can be ascribed to

The sky would appear red instead of blue if

Clouds appear to float in air due to

Clouds appear to float in air due to

Why do new iron sheets appear shiny?