Question

what happens to the thickness of vibrating string is increased​

Answer 1

The fundamental frequency of a vibrating string is inversely proportional to its length. Reducing the length of a vibrating string by one-half will double its frequency, raising the pitch by one octave, if the tension remains the same.

Explanation:

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Answer 2

Given that,

The thickness of vibrating string is increased

Length of string :

The frequency of vibrating string is inversely proportional to the length.

If the length of the string is changed then the string will vibrate with a different frequency.

The strings shorter then the frequency and pitch will be higher.

We know that,

Diameter of the string is the thickness of it.

If the diameter of the string is shorter it means thickness of string is decreases then the pitch will be high.

If the diameter of the string is larger it means thickness of string is increases then the pitch will be low.

Hence, The thickness of vibrating string is increased then the pitch will be low.