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What are the methods for producing Ultrasonic waves?
Ultrasonic Production:
Three methods there for producing Ultrasonic waves are as given below:
a. Mechanical generator or Galton’s whistle.
b. Magnetostriction generator.
c. Piezo-electric generator.
In this section, know the method of producing ultrasonic waves by using Magnetostriction method.
Diffraction pattern of a single slit of width 0.5 cm is formed by lens of focal length 40 cm. Calculate the distance between the first dark and the next bright fringe from the axis
sonic waves
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