The waves used in "sonar" are:
Correct answer: B. Sound waves
- A. Electromagnetic waves
- B. Sound waves
- C. Matter waves
- D. Water waves
Explanation
Sonar is derived from sound navigation and ranging. It is a technique which is used to detect and locate the objects like submarine, antisubmarine weaspons, mine hunting under water and depth measurement of sea.
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About Waves
Progressive waves transfer energy through oscillations, with wavelength, frequency, amplitude and wave speed related by v = fλ; sound speed depends on the medium. Superposition produces interference and stationary waves in strings and organ pipes, while simple harmonic motion describes the oscillation itself and must be distinguished from wave propagation.
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