A column of air is set into vibration and the note emitted gives 10 beats per second when a tuning fork of frequency 440 Hz is sounded, the temperature being 20°C. The frequency of beats decreases when the tuning fork is loaded with a small piece of wax. at what temperature the unloaded fork and the air column will be in unison?
A note produces 2 beats/s with a tuning fork of frequency 480 Hz and 6 beats/s with a tuning fork of 472 Hz. Find the frequency of the note.
A uniform tube 60 cm long stands vertically with its lower end dipping into the water. When the length above the water is 14.8 cm and again it is 48 cm, the tube to a vibrating tuning fork of frequency 512 Hz. Find the lowest frequency to which the tube will resound with it is open at both ends.
What is mean by resonance? Explain in detail how you would use sonometer to determine the frequency of a given tuning fork.
A tuning fork produces a feeble sound. But when it is pressed against a table, a loud sound is heard. Why?
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