Explanation:
Given A cylindrical tube of length 120 cm and with a tuning fork of frequency 330 if it is formed by water than to get resonance minimum length of water column is b is equal to 330 metre per second
We know that ν = nλ
So λ = ν / n
= 330 / 330
= 1 m
So first resonance will be
L1 = λ / 4 = 1/4 = 25 cm
So second resonance will be
L 2 = 3λ / 4 = 3/4 = 75 cm
Third resonance will be
L3 = 5λ/ 4 = 5/4 = 125 cm
Now maximum height of water will be
120-75
=45cm