Wave motionHard
Question
A metal wire of linear mass density of 9.8 gm is stretched with a tension of 10 kg-wt between two rigid supports 1 metre apart. The wire passes at its middle point between the poles of a per magnet and it vibrates in resonance when carrying an alternating current of frequency n. The frequency n of the alternating source is
Options
A.50 Hz
B.100 Hz
C.200 Hz
D.25 Hz
Solution
Frequency of oscillation n = 
=
× 102 =
× 102 = 50Hz

=
× 102 =
× 102 = 50HzCreate a free account to view solution
View Solution FreeMore Wave motion Questions
Two trains A and B are moving in the same direction with velocities 30 m/s and 10 m/s respectively, B is behind from A b...The path difference between two interference waves at a point on a screen is 11.5 times the wavelength. The point is :-...An open pipe is suddenly closed with the result that the scond overtone of the closed pipe is found to be higher in freq...To demontstrate the phenomenon of interferrnce, we require two source which emitradiation of...A wave y = asin(ω - kx)on a string meets with another wave producing a node at x = 0. Then the equation of the unkn...