63 A tuning fork of frequency N is sounded at the open end

Last updated: 6/9/2023

63 A tuning fork of frequency N is sounded at the open end of a long cylindrical tube having a side opening and fitted with a movable reflection piston At a certain position of the piston the listener hears a maximum sound as shown in the figure When the piston is moved through 9 cm the intensity of sound becomes minimum If the speed of sound is 1 360 ms the value of N is E a 250 Hz b 500 Hz c750 Hz d 1000 Hz Ear