Question

Consider the wave y = (5 mm) sin[1 cm^(-1) x - (60 s^(-1)) t]. Find (a) the ampitude, (b) the angular wave number, ( c ) the wavelength, (d) the frequency, (e) the time period and (f) the wave velocity.

Answer 1

Answer:

Explanation:

Comparing the given equation with

y=sin(kx-ωt)

we find,

(a) Amplitude A=5mm

(b) Angular wave number k=1cm-1

( c ) Wavelength, λ=

2π

k

=2πcm

(d) Frequency, v=

ω

2π

=

60

2π

Hz

=

30

π

Hz

(e) Time period, T=

1

v

=

π

30

s

(f) Wave velocity, v=vλ=60cms-1