- 04/18/2019 at 8:53 pm #526842EduGorillaKeymasterSelect Question Language :
Which of the following statements is INCORRECT?
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- Sound waves in gases are longitudinal in nature.
- Sound waves having frequency below 20 Hz are known as ultrasonic waves.
- Sound waves having higher amplitudes are louder.
- Sound waves with high audible frequencies are sharp.
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