A student performed the experiment to measure the speed of sound in...

A student performed the experiment to measure the speed of sound in air using resonance air-column method. Two resonances in the air-column were obtained by lowering the water level. The resonance with the shorter air-column is the first resonance and that with the longer air column is the second resonance. Then, A student performed the experiment to measure the speed of sound in air using resonance air-column method. Two

Options

Athe intensity of the sound heard at the first resonance was more than that at the second resonance
Bthe prongs of the tuning fork were kept in a horizontal place above the resonance tube
Cthe amplitude of vibration of the ends of the prongs is typically around $1 \mathrm{~cm}$
Dthe length of the air-column at the first resonance was somewhat shorter than $1 / 4$ th of the wavelength of the sound in air

Correct answer

A. the intensity of the sound heard at the first resonance was more than that at the second resonance

Step-by-step solution

1 < \frac{\lambda}{4}

Further, larger the length of air column, feebler is the intensity. A student performed the experiment to measure the speed of sound in air using resonance air-column method. Two

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