Ultrasonic waves are produced by _________.

Peltier's effect

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Piezoelectric effect

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Doppler's effect

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Coulomb's law

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Solution

The correct option is B Piezoelectric effect
Piezoelectric effect can be used to convert electric energy to Mechanical vibration energy as ultrasonic waves. This phenomenon is used in ultrasounds.

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Ultrasonic waves are produced by _________.

The correct option is B Piezoelectric effectPiezoelectric effect can be used to convert electric energy to Mechanical vibration energy as ultrasonic waves. This phenomenon is used in ultrasounds.

The correct option is B Piezoelectric effect
Piezoelectric effect can be used to convert electric energy to Mechanical vibration energy as ultrasonic waves. This phenomenon is used in ultrasounds.