57 Plane simple harmonic waves of wavelength 120 cm and

Last updated: 6/9/2023

57 Plane simple harmonic waves of wavelength 120 cm and speed 34000 cm sec are incident normally on a plane surface which is a perfect reflector of sound Stationary waves are formed The ratio of amplitudes of vibration at point distance 1 10 cms 2 30 cms from the reflector is 1 2 b1 4 1 1 1 3