Question

A wave pulse of frequency 200Hz, and a string moves a distance 8min 0.055 s.Calculate:(a) the velocity of pulse

Answer 1

A) GIVEN,

DISTANCE TRAVELLED BY STRING ,S = 8 M

TIME TAKEN FOR THE PULSE TO MOVE THROUGH THE STRING,T =0.05 S

VELOCITY OF THE PULSE =V= S/T

V=8/0.05 =160 M/S

SO,

VELOCITY OF THE PULSE ,V=160 M/S

FREQUENCY OF THE PULSE ,V=200 HZ

HENCE,

WAVELENGTH =V/V=160 M/S/200 HZ =0.8 M