Given below are two statements, one is... | Renewable Energy Engineering

ICAR JRF Renewable Energy Engineering 29 Jun 2024Shift 1

Assertion & Reason +4 −1

Given below are two statements, one is labelled as Assertion (A) and other one labelled as Reason (R).

Assertion (A) : Noise Induced Hearing Loss (NIHL) is irreversible.

Reason (R) : NIHLis even, being greater in lower frequency than higher frequency.

In light of the above statements, choose the correct answer from the options given below.

Both (A) and (R) are true and (R) is the correct explanation of (A) Both (A) and (R) are true but (R) is NOT the correct explanation of (A). (A) is true but (R) is false Correct (A) is false but (R) is true.

Noise-Induced Hearing Loss (NIHL) in Tractor Operators:
Assertion (A): Noise Induced Hearing Loss (NIHL) is irreversible. $\implies$ True.
Chronic occupational exposure to acoustic energy destroys delicate stereocilia of hair cells in the organ of Corti in the inner ear, leading to permanent, irreversible sensorineural hearing loss.
Reason (R): NIHL is even, being greater in lower frequency than higher frequency. $\implies$ False.
NIHL is characteristically asymmetric and concentrated at higher frequencies, showing a classic audiometric notch at 4000 Hz (4 kHz), while lower conversational frequencies (500–2000 Hz) are affected much later.
Conclusion: (A) is true but (R) is false (Option 3).

Correct option: (3) (A) is true but (R) is false

Explanation not matching this question? क्या व्याख्या इस प्रश्न से मेल नहीं खा रही? Report

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