NEET Physics Waves Questions Solved

A standing wave is represented by

$Y=A\mathrm{sin}\left(100t\right)\mathrm{cos}\left(0.01x\right)$

where Y and A are in millimetre, t is in seconds and x is in metre. The velocity of wave is

(1) 104 m/s

(2) 1 m/s

(3) 10–4 m/s

(4) Not derivable from above data

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