Audit | MCQs

Explanation

The loudness of a sound depends on the Amplitude of the vibration

 Loudness is proportional to the square of the amplitude

if the amplitude is increased by three times, the loudness also increases by nine times.

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ND4-12-2022

Explanation

The cochlea is a spiral, snail-shaped structure in the inner ear responsible for converting sound vibrations into nerve signals.

It plays a key role in the sense of hearing.

Explanation

Muhammad Ajmal Gondal is the current Auditor General of Pakistan since september 2021.

Explanation

Aural means کان دیکھنے کا آلہ اُذنی ۔ کان سے مُتَعلِق 

Ear means کان

Explanation

Explanation

The pinna is the outer part of the ear that collects sound waves and directs them into the ear canal.

From there, sound waves travel to the ear drum and further into the inner ear for processing.

Explanation

Pitch determines whether a sound is shrill (high-pitched) or grave (low-pitched).

It depends on the frequency of the sound waves — higher frequency means higher pitch.

Explanation

Dynamic range is the ratio between the largest and smallest values that a certain quantity can assume.

It is often used in the context of signals, like sound and light.

In music, dynamic range describes the difference between the quietest and loudest volume of an instrument, part or piece of music.

Explanation

 The eustachian tube is not part of the inner ear; the inner ear consists of the cochlea, semicircular canals, and the vestibule (which includes the utricle and saccule). 

Explanation