Given the progressive wave equation y = 5 sin (2000 πt...
Given the progressive wave equation y = 5 sin (2000 πt - 0.4x), calculate wave length
12.4 m
15.7 m
17.5 m
18.6 m
Correct answer is B
Comparing y = 5sin (200 πt - 0.4X) with the wave equation y = A sin (wt -KX) K = (2π)/λ = 0.4
∴ λ = (2π)/0.4 = 15.7M
The quantity of motion of a body is its ...
Which of the following is usually used to cause fission in an atomic reactor? ...
If the frequency of the e.m.f. source in the a.c. circuit illustrated above is 500πHz...
A temperature 20°C is the same as...
The mass of a proton is 1.0089μ and that of a neutron is 1.0089μ. Determine the energy e...
Which of the following is NOT part of an a.c generator? ...
The extension in a spring when 5g wt was hung from it was 0.56cm. If Hooke's law is obeyed, What...