The safe Noise level is fixed by WHO is (A) 20-30 Db (B) 45 Db (C)

1.	The safe Noise level is fixed by WHO is (A) 20-30 Db (B) 45 Db (C) 75 Db (D) 90 Db
Answer» Correct Answer is:(B) 45 Db • Noise is measured in decibels. Experts believe that continuous noise levels in excess of 90 decibels can cause loss of hearing and irreversible changes in nervous systems. • The World Health Organization [WHO] has fixed 45 decibels as the safe noise level for a city

The safe Noise level is fixed by WHO is (A) 20-30 Db (B) 45 Db (C) 75 Db (D) 90 Db

Answer»

Correct Answer is:(B) 45 Db

• Noise is measured in decibels. Experts believe that continuous noise levels in excess of 90 decibels can cause loss of hearing and irreversible changes in nervous systems.

• The World Health Organization [WHO] has fixed 45 decibels as the safe noise level for a city

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The safe Noise level is fixed by WHO is (A) 20-30 Db (B) 45 Db (C) 75 Db (D) 90 Db

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