Question

For the wave y=5 sin 30pi[t-(x//240)], where x and y are in cm and t is in seconds, find the (a) displacement when t = 0 and x = 2 cm (b) wavelength ( c ) velocity of the wave and (d) frequency of the wave

Answer 1

Answer:

Explanation:

a) Put t=0,x=2cm

(b) λ=

2π

k

=

2π

(30π/240)

=16cm

(c) Wave velocity =

Coefficient of t

Coefficient of x

=

1

1/240

=240cm/s

(d) f=

ω

2π

=

30π

2π

=15Hz