Vibrations of period 0.25 s propagate along a straight line at a velocity of 48 cm/s. One second after the emergence of vibration 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,
(a) amplitude of vibrations is 6 cm
(b) amplitude of vibrations is 3√2 cm
(c) amplitude of vibrations is 3 cm
(d) None of the above
