Question

A sitar wire is replaced by another wire of same length and material but of three times the earlier radius if the tension in the wire remains the same, by
what factor will the frequency change​

Answer 1

wire frequency is change

Answer 2

According to the data mentioned in the question that,

A sitar wire is replaced by another wire of same length and material but of three times the earlier radius if the tension in the wire remains the same,

Then the wire frequency will be changed only by the manual hitting value differences on the wire.(as no physical characteristics were changed in this scenario,the manual applied forced should be the reason of the frequency change)