Question

a source is producing 15 waves in 3 seconds the distance between a crust and trough is 10 cm find frequency , wavelength and speed of the wave

Answer 1

source is producing 15 waves in 3 seconds

number of waves produced in one second is 15/3= 5 waves

so the frequency is 5Hz

given that wave length λ/2 =10cm

therefore λ=20cm

speed v=νλ    = freqency *wave length

v=5*20

v=100m/s

Answer 2

Answer:

Explanation:

The only thing to remember here is that we need to convert the units properly, rest it is easy!