A wire having a linear density 0.1kg/m is kept under a tension of 490 N. It is observed that it resonates at a frequency of

Question 1

A wire having a linear density 0.1kg/m is kept under a tension of 490 N. It is observed that it resonates at a frequency of 400Hz and the next higher frequency 450Hz. Find the length of the wire .

(A) 0.4m

(B) 0.7m

(C) 0.6m

(D) 0.49m

Question 2

Correct option: (B) 0.7m

A wire having a linear density 0.1kg/m is kept under a tension of 490 N. It is observed that it resonates at a frequency of

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A wire having a linear density 0.1kg/m is kept under a tension of 490 N. It is observed that it resonates at a frequency of

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