Question

A wave has a speed of 250 ms-1 and a wavelength of 2.5 m. What is its: [3]
(i) frequency
(ii) time period

Answer 1

Answer:

(i) Frequency (f) = speed of wave (c)/ wavelength (λ)

         => f = 250 ms^(-1)/2.5 m

         => f = 100Hz

(ii) Frequency (f) = 1/time period (t)

         => t = 1/f

         => t = 1/100Hz

         => t = 0.01s