NEET Physics Wave Motion MCQ Question
In the diagram shown above, a wave is travelling along a string. If the angular wave number of this wave is 80 m⁻¹, what is the wavelength of the wave?
7.85 cm
0.125 m
31.4 cm
0.25 m
Correct Answer
Detailed Explanation
The wavelength λ is related to the angular wave number k by the equation λ = 2π/k. Substituting k = 80 m⁻¹, we find λ = 2π/80 = 0.0785 m or 7.85 cm.
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