Question:

A standing wave is represented by y = a sin (100t) cos (0.01x) , where Y and A are in millimetre, t is in seconds and x is in metre. The velocity of wave is

Options :

  • (a) 10^4 m/s
  • (b) 1 m/s
  • (c) 10^-4 m/s
  • (d) not derivable from above data

Answer :

(a) 104 m/s

Answer Steps :

step 1

step 2

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