1.

Two waves of frequencies 20 Hz and 30 Hz. Travels out from a common point. The phase difference between them after 0.6 sec is                                                               [JIPMER 1999]

A.            Zero                                         
B.            \[\frac{\pi }{2}\]
C.            \[\pi \]                                    
D.            \[\frac{3\pi }{4}\]
Answer» B.            \[\frac{\pi }{2}\]


Discussion

No Comment Found

Related MCQs