Question

A 1cm long string vibrates with fundamental frequency of 256Hz.If the length is reduced to1/4 cm keeping the tension unaltered,the new fundamental frequency will be

Answer 1

Answer:

A 1 cm long string vibrates with fundamental frequency of 256 Hz. If the length is reduced to \[\frac{1}{4}cm\] keeping the tension unaltered, the new fundamental frequency will be [BHU 1997]

A)            64  

B)            256

C)            512

D)            1024

Explanation:

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Answer 2

Answer is 1024Hz

Explanation:

As frequency is inversely proportional to length of the string...

Therefore

256/f=1/1/4

So, f=256*4

f=1024Hz