Teaching BPSC बिहार मध्य विद्यालय (6 to 8) शिक्षक भर्ती 4.0 Mock Test General Science Physics Wave

SONAR is based on which of the following principle?

1

Reveberation

2

Reflection of sound waves(Echo)

3

Resonance

4

More than one of the above

5

None of the above

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