First slide

Stationary waves

Question

Two wires are producing fundamental notes of the same frequency. Change in which of the following factors of one wire will not produce beats between them

Easy

A

Amplitude of the vibrations
B

Material of the wire
C

Stretching force
D

Diameter of the wires

Solution

Change in amplitude does not produce change in frequency, $(n = \frac{1}{2 l} \sqrt{\frac{T}{{πr}^{2} ρ}})$ .

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