1 Fill in the blank. 1- The device used to measure rhe depth of sea is called_______ .2-For hearing an echo the minimum distance between the source of sound and the_____body is 17 m. 3 -The range of ______vibrations is above 20,000 Hz.4-The____of the sound produced by a vibrating wire decreases ,if its length is increased.5-The loudness of sound depends on the extent of_____of a vibrating body.

1 Fill in the blank. 1- The device used to measure rhe depth of sea

1.	1 Fill in the blank. 1- The device used to measure rhe depth of sea is called_______ .2-For hearing an echo the minimum distance between the source of sound and the_____body is 17 m. 3 -The range of ______vibrations is above 20,000 Hz.4-The____of the sound produced by a vibrating wire decreases ,if its length is increased.5-The loudness of sound depends on the extent of_____of a vibrating body.
Answer» 1) sonarExplanation:HOPE it will HELP

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