First slide

Characterstics of wave

Question

What is the phase difference at a given instant of time between two particles 25 m apart, when the wave $y (x, t) = 0.03 \sin π (2 t - 0.01 x)$ travels in a medium?

Moderate

A

$\frac{π}{8}$
B

$\frac{π}{4}$
C

$\frac{π}{2}$
D

$π$

Solution

Phase difference,
$Δ ϕ = \frac{2 π}{λ} \cdot Δ x = k \cdot Δ x = π \times 0.01 \times 25 = \frac{π}{4}$

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