Question

If newton's formula is applicable, then the formula for velocity of sound is:-

Answer 1

According to Newton, when sound waves propagate in air, compression and rarefaction are formed. He assumed that the process is very slow and the heat produced during compression is given to surrounding and heat loss during compression is gained from surrounding. the speed of sound is about 343 metres per second (1,235 km/h; 

If B is the bulk modulus of the air, v is velocity and ρ is the density, then, velocity is given by

Answer 2

Velocity of sound=√pressure (P) × index (Y)/ density of air (P)

v =√PY/p

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