x=4(cosπt+sinπt)=4[sin(2π−πt)]+sinπt]=4[2×sin(2πt−2π−πt)cos(2πt−2π+πt)] =8[sin4π⋅cos(−4π+πt)] =28⋅cos[πt−4π]=42cos[πt−4π] Comparing it with standard equation X=Acos(wt−Kx)⇒A=42
The displacement of a particle varies according to the relation x=4(cosπt+sinπt). The amplitude of the particle is
Held on 30 Apr 2003 · Verified 6 Jul 2026.
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The equation of a plane progressive wave is given by $y = 5\cos\pi\left(200t - \dfrac{x}{150}\right)$ where $x$ and $y$ are in cm and $t$ is in second. The velocity of the wave is _______ m/s.
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Work through every JEE Main Waves & Oscillations PYQ, year by year.