JEE PHYSICS MCQ: WAVES

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Application +4 | -1

Four wires of identical length, diameters and of the same material are stretched on a sonometre wire. If the ratio of their tensions is

1\mathrm{ }:\mathrm{ }4\mathrm{ }:\mathrm{ }9\mathrm{ }:\mathrm{ }16

then the ratio of their fundamental frequencies are

View answer and explanation

Correct option: D

1\mathrm{ }:\mathrm{ }2\mathrm{ }:\mathrm{ }3\mathrm{ }:\mathrm{ }4

Option D (

1\mathrm{ }:\mathrm{ }2\mathrm{ }:\mathrm{ }3\mathrm{ }:\mathrm{ }4

) is correct because the fundamental frequency of a sonometer wire is directly proportional to the square root of the tension.

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