l MetroPCS LTE 2:07 PM live.hssu.edu 10) Which one of the following wave quantit

Question

l MetroPCS LTE 2:07 PM live.hssu.edu 10) Which one of the following wave quantities is not related to the (ts) others? O frequency O speed O amplitude When a sound wave goes from air into water, the quantity that pts) remains unchanged is its frequency speed. O amplitude. O wavelength. 12) A 40 dB sound is how much stronger than 10 dB sound (2pts) 1000 times O100 times O 30 times O 4 times 13) Which of the following is a measure of the frequency of a (2pts) wave? O decibel hertz 14) Sound waves travel fastest in (2pts) O liquids. solids, O gases. 15) which one or more of the following effects occur in all types of (2pts) wave? refraction reflection O diffraction O the Doppler effect All of the above 16) A decrease in amplitude of a sound wave means it has a (2pts lower

Explanation / Answer

10. Option D. As velocity is given by (frequency x wavelength)

11. Option A. Only frequency remain unchanged.

12. Option A. As 10dB increase means 10 raised to power 1.

13. Option B

14. Option C

15. Option E

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