The aeroplanes flying high in the sky cast their shadow on the ground. State if the statement is true or false.
False
The source of light i.e. the sun is very large as compared to the opaque object which is aeroplane here. The umbra cone formed by the aeroplane is so small that it does not reach the ground, the only penumbra is formed which is very faint and hence, no visible shadow is formed on the ground.