Question

9)b) A progressive wave is represented by the equation y=0.6sin(160πt_4πx) where x and y are in meters and is seconds. find

i)The frequency of the wave

ii)The wave number

iii)The wavelength of the wave

Answer 1

Answer:

(I) Frequency f = 80Hz

(ii) wave number, k = 4π

(iii) wavelength = k/2π = 4π/2π = 2m

Explanation:

The given wave is of the form

y=Asin(2πft - Kx)

(I) Frequency f = 80Hz

(ii) wave number, k = 4π

(iii) wavelength = k/2π = 4π/2π = 2m