How we hear sound immediately through telephone || explained in HINDI #Shorts

How do we hear sound?

A man is swimming at a depth d in a sea at a distance L (gt gt d) from a ship (S). An explosion occurs in the ship and after hearing the sound the man immediately moves to the surface. It takes 0.8 s for the man to rise to the surface after he hears the sound of explosion. 0.2 s after reaching the surface he once again hears a sound of explosion. Calculate L. Give: speed of sound in air =340 ms^(-1) , Bulk modulus of water =2xx10^(9) Pa

How is sound propagated through a material medium ? What is wave motion ?

Explain why, if we strike a table lightly, we hear a soft sound but if we hit the table hard, a lound sound is heard.

Explain why, if we touch the test-tube immediately after carrying out the neutralisation reaction of an acid and a base in it, it is found to be somewhat hot.

When we hear a sound, we can identify its source from

why do we hear the sound produced by the humming bees while the sound of vibrations of pendulum is not heard ?