InterviewSolution
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Fill in the following blanks with suitable words: (a) Sounds are produced by ___objects. (b) The human voice box is called___ (c) Sound cannot travel in___ (d) A set of three ___tiny in the middle part of ear passes on sound vibrations from the eardrum to the liquid in cochlea. (e) The unit of frequency is___ (f) The timet taken by an object to complete one oscillation is called ___ (g) The shrillness of a sound is determined by the___ of vibration. (h) Unpleasant sound is called___ (i) Sound which is pleasing to the era is called___ sound (j) A person having partial hearing loss can hear properly by wearing a device called hearing___ on the ear. |
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Answer» Fill in the following blanks with suitable words: (a) Sounds are produced by (b) The human voice box is called (c) Sound cannot travel in (d) A set of three (e) The unit of frequency is (f) The timet taken by an object to complete one oscillation is called (g) The shrillness of a sound is determined by the (h) Unpleasant sound is called (i) Sound which is pleasing to the era is called (j) A person having partial hearing loss can hear properly by wearing a device called hearing |
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