Question

Answer these 9 ,10,11,12,13 answers please​

Answer 1

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9.EVERY SOUND PERSISTS IN OUR EAR FOR 0.1 SECOND. THIS IS CALLED PERSISTENCE OF HEARING

10.REVEBARATION IS THE PERSISTENCE OF HEARING AFTER THE ORIGNAL SOUND STOPS PRODUCING

SOUND. IT OFTEN OCCOUS IN A ROOM OF LENGTH , WIDTH AND HEIGHT OF 17 m OR LESS

13. THE OTHER NAME OF EARDRUM IS TYMPANIC MEMBRANE

14. FULL FOEM OF SONAR IS SOUND NAVIGATION AND RANGING

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