Concepts Of Physics MCQ Edition [Volume 1]PhysicsWave Motion and Waves on a String

A wave traveling on a string at a speed of 10 m s ⁻¹ causes each particle of the string to oscillate with a time period of 20 ms . Determine the wavelength of the wave.

Options

A40 cm
B20 cm
C10 cm
D200 cm

Correct answer

B. 20 cm

Step-by-step solution

Given, wave speed v = 10 m s ⁻¹ Time period T = 20 ms = 20 10⁻³ s The wavelength is given by the relation = vT Substituting the values, we get = 10 20 10⁻³ m = 0.2 m = 20 cm

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