Question From - NCERT Physics Class 11 Chapter 15 Question – 013 WAVES CBSE, RBSE, UP, MP, BIHAR BOARD
QUESTION TEXT:-
Given below are some functions of x and t to represent the displacement (transverse or longitudinal) of an elastic wave. State which of these represent (i) a travelling wave, (ii) a stationary wave or (iii) none at all? (a) `y=2cos(3x)sin(10t)` (b) `y=2sqrt(x-vt)` (c) `y=3sin(5x-0.5t)+4cos(5x-0.5t)` (d) `y=cosx sint +cos2x sin2t`
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