Question

a large ripple tank with a vibrator of 30 Hz produce 25 complete waves in a distance of 50 cm.the velocity of wave is

Answer 1

$frequency=\frac{velocity}{wavelength}$
wavelength = distance/no. of waves
wavelength = 50/25 = 2
now,
30=v/2
v=30*2
therefore, velocity = 60

Answer 2

Dear Student,

◆ Answer -

v = 0.6 m/s

● Explanation -

# Given -

f = 30 Hz

s = 50 cm = 0.5 m

N = 25 waves

# Solution -

Wavelength of wave is calculated as -

λ = s / N

λ = 0.5 / 25

λ = 0.02 m

Velocity of the wave is calculated by -

v = λ.f

v = 0.02 × 30

v = 0.6 m/s

Hence, velocity of the wave is 0.6 m/s.

Thanks dear. Hope this helps you...