Verification of the Laws of Reflection

Laws of Reflection
1.The reflection of the sound follows the law "angle of incidence equals angle of reflection", sometimes called the law of reflection.
2.The incident , the reflected and the 'normal' wave all lie in the same plane
3.When a longitudinal sounds wave strikes a flat surface, sound is reflected in a coherent manner provided that the dimension of the reflective surface is large compared to the wavelength of the sound.
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