How is second resonance length `(l_(2))` in the resonance apparatus related to first resonance length `(l_(1))` ?

In the resonance apparatus, when water is replaced by mercury, resonance length

The the resonance tube experiment first resonant length is l_(1) and the second resonant length is l_(2) , then the third resonant length will be ?

The the resonance tube experiment first resonant length is l_(1) and the second resonant length is l_(2) , then the third resonant length will be ?

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. the intensity of the sound heard at the first resonance was more than at the second resonance B. the prongs of the tuning fork were kept in a horizontal plane above the resonance tube C. the ampitude of vibration of the end of the prongs is typically around 1 cm D. the length of the air-column at the first resonance was somewhat than 1//4 th of the wavelength of the sound in air.

In a resonance - column experiment to measure the velocity of sound , the first resonance is obtained at a length l_(1) and the second resonance at a length l_(2) . Then ,

The first resonance length of a resonance tube is 40 cm and the second resonance length is 122 cm . The third resonance length of the tube will be

The first resonance length of a resonance tube is 40 cm and the second resonance length is 122 cm . The third resonance length of the tube will be

The first resonance length of a resonance tube is 40 cm and the second resonance length is 122 cm . The third resonance length of the tube will be

Assertion: The length of the glass tube in air column resonating experiment is 75 cm. If velocity of sound in air is 330ms^(-1) , The experiment connot be performed with a tuning fork o frequency n=482 Hz. Reason: If l_(2)andl_(1) are first and second resonating lengths in air column resonating experiment, then velocity of sound V=2n(l_(2)-l_(1))