y=2asin(kx)cos(ωt)
⇒k=45πm−1,ω=200πrads−1,
v=kω=45π200π=160ms−1
JEE Main 2017 — Physics Waves & Oscillations
A standing wave is formed by the superposition of two waves travelling in opposite directions. The transverse displacement is given by, y(x,t)=0.5sin(45πx)cos(200πt). What is the speed of the travelling wave moving in the positive x direction? (x and tare in meter and second, respectively)
Held on 9 Apr 2017 · Verified 6 Jul 2026.
120ms−1
90ms−1
160ms−1
180ms−1
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