if the reflected and the incident sound waves are at an angle of 120 degree with each other the incident angle should be of what measurement
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60° is right answer
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According to the laws of reflection, the angle of incidence is equal to the angle of reflection.
Hence, the angle of incidence + angle of reflection = 2 times the angle of incidence
So, 120 degrees = 2 times of the angle of incidence
Therefore, the angle of incidence is equal to 120 / 2 = 60 degrees
Hence, the angle of incidence + angle of reflection = 2 times the angle of incidence
So, 120 degrees = 2 times of the angle of incidence
Therefore, the angle of incidence is equal to 120 / 2 = 60 degrees
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