A vibrator of frequency 60Hz is used in generating transverse stationary waves in a long thin wire, If the average distance between successive nodes on the wire is 45cm, find the speed of the transverse waves in the wire.
A
27ms-1
B
54ms-1
C
90ms-1
D
108ms-1
Verified Correct Answer: B.
Physical Principles & Numerical Solution
f = 60Hz, l = 45cm = 0.45m
\lambda = 2l = 2 x 0.45 = 0.90m V = f\lambda = 0.9 x 60 = 54m/s
Source: Myschool Past Questions Archive (Record #28338)