The equation of a wave is y = 4 sin [ 2 π ( 2 t + 8 1 x ) ] where y and x are in cm and t is in seconds:

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PhysicsWave on StringWavesMedium2 minQB

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The equation of a wave is $y = 4 sin [\frac{π}{2} (2 t + \frac{1}{8} x)]$ where $y$ and $x$ are in cm and $t$ is in seconds:

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Answer:

B, C, D

Solution:

$ω = π$ , $k = π /16$ . So $λ = 32$ cm, $v = ω / k = 16$ cm/s, $f = 0.5$ Hz, and the $+ k x$ sign means travel along $- x$ . $Δ ϕ = ω Δ t = 0.4 π$ . $Δ ϕ = k Δ x = 12 π /16 = 13 5^{\circ}$ .

Stream:JEESubject:PhysicsTopic:Wave on StringSubtopic:Waves

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