|Class 9 Physics Sound||Speed of Sound|
Speed of Sound
The speed of sound depends on the following factors.
We know that, Speed = Distance / Time
We know that any point of the wave travels a distance λ in time T. So, we have
v = λ/T = λμ = (Because μ = 1/ T )
Light travels faster than sound in air. Hence we see the lightning before we hear thunder.