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

Problem on Rain-Man || Examples on Rain-Man

Cromagnon Man differs from Neanderthal Man in having

The noticeable difference of Peking man from Java man was its

The noticeable difference of Peking man from Java man was its

The noticeable difference of Peking man from Java man was its