Practice question

Given: A transverse wave travels on a string with a speed of 20 m/s and a frequency of 10 Hz. What is its wavelength? These values define the system as per NCERT data. Formula: Speed: v = v lambda. This is the standard NCERT relation for this phenomenon. Substitution & Calculation: lambda = v/v = 20/10 = 2 m . Result: The computed value matches the expected outcome and confirms the correct choice. Units and powers like J kg⁻¹ K⁻¹, m/s², 10⁻⁵ are properly used as per NCERT.