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Because sound is a wave, it is possible to make a diffraction grating for sound from a large board with several parallel slots for the sound to go through. When 11 kHz sound waves pass through such a grating, listeners 12 meter from the grating report "loud spots" 1.3 meter on both sides of center.

Evaluate what the spacing between the slots? Use 340 m/s for the speed of sound.

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  • Category:- Physics
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