Define superposition principle and echo.
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that satisfies the superposition principle is called a linear function. Superposition can be defined by two simpler properties; additivity and ...
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Superposition principle
It states that when two or more waves of same nature travel in a medium then the resultant
of displacement is vector sum of displacement due to individual wave .
Echo
It is defined as repetition of sound of short duration . It is heard if minimum distance between the obstacle reflecting sound waves of the source of sound is 70 m
Explanation:
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