Biology NEET Full Syllabus Mock Test 180 Questions New Syllabus Mock Test - 6 PCB Single Correct MCQ
Published on: August 11, 2026

Refer the given figure of ear with few structure marked as I, II, III & IV. Which labelled structure converts sound waves into mechanical vibrations?

A
I
B
II
C
iii
D
IV

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The correct answer is:
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The label II represents tympanic membrane. Tympanic membrane converts sound waves into mechanical vibrations. The structure I, II, III and IV are external auditory canal, tympanic membrane, cochlea and eustachian tube respectively.

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