Question

The displacement wave in a string is y = (3 cm) sin 6.28 (0.5x – 50t) where x is in centimetres and t in seconds. The wavelength and velocity of the wave is :

(A) 2 cm, 100 cms^–1

(B) 10 cm, 50 cms^–1 

(C) 20 cm, 2 ms^–1 

(D) 2 m, 100 ms^–1

Answer 1

Correct option ; (A) 2 cm, 100 cms^–1