Transverse waves are produced in a stretched wire. Both ends of the string are fixed. Let us compare between second overtone mode (in numerator) and fifth harmonic mode (in denominator). match the following two columns.
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Solution
Second overtone means third harmonic and hence there will be three antinodes. In fifth harmonic there will be 5 antinodes.
A: Since f∝1λ∝nl⇒f2f5=35
B. Number of nodes ratio is 2+24+2=46=23
C: Number of antinodes ratio is 35 since number of antinodes are proportional to the number of harmonics.
D: Wavelength is proportional to 1f, hence λ1λ2=53.