Man is `:`

A bir is singing on a tree and a man is hearing at a distance r from the bird. Calculate the displacement of the man towards the bird so that the loudness heard by man increases by 20dB . [Assume that the motion of man is along the joining the bird and the man].

Prehistoric Man || Homo Habilis || Homo Erectus ( Java Man Peiking Man Hiedelberg man) || Homo Sapiens ( Neamderthal Man Cromagnom Man Modern Man) || Races OF Man || Three Ages In The Course OF Evolution

Which of the following primitive man was nicknamed as handy man?

Neanderthal man differs from modern man in

Neanderthal man differs from modern man in

Neanderthal man differs from modern man in