NEET Physics Waves Questions Solved


When a tuning fork A of unknown frequency is sounded with another tuning fork B of frequency 256 Hz, then 3 beats per second are observed. After that A is loaded with wax and sounded, the again 3 beats per second are observed. The frequency of the tuning fork A is 

(1) 250 Hz

(2) 253 Hz

(3) 259 Hz

(4) 262 Hz

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