A cork on the surface of water moves up down completing five vibrations in 4s.
The waves travel from a cork to the shore which is 20m away in 10s

Question

A cork on the surface of water moves up down completing five
vibrations in 4s
The waves travel from a cork to the shore which is 20m away in
10s
calculate
(a) the speed (b) frequency (c) wavelength

Govind · Accepted Answer

Hi,

aSpeed of wave, v=Distance travelled by wavetime⇒v=2010=2 ms-1bFrequency, f=No of vibration time taken=54=1
25 Hzc Using formula, v=λf⇒λ=21
25=85=1 6 m

A cork on the surface of water moves up down completing five vibrations in 4s.The waves travel from a cork to the shore which is 20m away in 10s calculate(a) the speed (b) frequency (c) wavelength

A cork on the surface of water moves up down completing five vibrations in 4s.
The waves travel from a cork to the shore which is 20m away in 10s

calculate
(a) the speed (b) frequency (c) wavelength