## Question

A sonometer wire of length 120 cm is divided into three segments of lengths in the ratio of 1: 2: 3. What is the ratio of their fundamental frequencies?

### Solution

6: 3: 2

The frequency of the fundament mode is given by

#### SIMILAR QUESTIONS

A window whose area is 2 *m*^{2} opens on a street where the street noise result in an intensity level at the window of 60 dB. How much ‘acoustic power’ enters the window via sound waves. Now if an acoustic absorber is fitted at the window, how much energy from street will it collect in five hours?

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Decibel is:

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