Vibrations of period 0.25 s propagate along a straight line at a velocity of 48 cm/s
PHYSICS · Single correct · A Level · Physics · Waves · Waves
Problem
Vibrations of period 0.25 s propagate along a straight line at a velocity of 48 cm/s. One second after the emergence of vibrations at the initial point, displacement of the point, 47 cm from it is found to be 3 cm. [Assume that at initial point particle is in its mean position at t=0 and moving upwards]. Then,
(1) amplitude of vibrations is 6 cm
(2) amplitude of vibrations is 32 cm
(3) amplitude of vibrations is 3 cm
(4) None of these