NEET2026Physics-Waves
NEET 2026 Physics Wave Motion MCQ Question
Type: MCQ-numerical-Medium-Class 11
For a travelling harmonic wave y(x, t) = 2.0 cos 2π(10t − 0.0080x + 0.35), where x and y are in cm and t in s. The phase difference between oscillatory motion of two points separated by a distance of 0.5 m is:
A
0.08 π rad
B
0.8 π rad
C
8 π rad
D
0.008 π rad
Correct Answer
Option B
Detailed Explanation
The phase difference Δϕ = kΔx = 2π × 8 × 10⁻³ × 100/2 = 8π × 10⁻¹ = 0.8π.
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