question_answer

Which combination of statements is incorrect?

i. Sound can travel faster than light in vacuum.

ii. Eardrum is a tightly stretched membrane which converts sound waves into electrical impulses.

iii. If frequency of a sound wave is 1800 hertz, it is an infrasonic sound.

iv. Middle ear consists of three interlocked bones named as hammer, anvil and tibia.

v. Ear canal in the outer ear is the passage which carries sound waves to the eardrum.

A) i, ii, iii and iv

B) ii, iii, iv and v

C) i, iii and v

D) i, iv and v

E) None of these