On a stretched string, the frequency of vibration is given by f = (1/2 L) (T/m). In this equation, m has the dimension:
Correct answer: B. ML-1
- A. ML-2
- B. ML-1
- C. M
- D. ML
Explanation
In this equation, 'm' represents mass per unit length, so the correct dimension is [ML‐1]
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Progressive waves transfer energy through oscillations, with wavelength, frequency, amplitude and wave speed related by v = fλ; sound speed depends on the medium. Superposition produces interference and stationary waves in strings and organ pipes, while simple harmonic motion describes the oscillation itself and must be distinguished from wave propagation.
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