Posted by **srikala** on Monday, May 28, 2012 at 10:09am.

the angular frequency of a particle in a progressive wave in an elastic medium is 100.(3.14) rads^-1.and it is moving with a velocity of 200 ms^-1. the phase difference between two particles separated by a distance of 20cm is

options:

1.31.4 rad

2.36 rad

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