Q. Maximum noise permissible during day time in residential areas is
A) 75 dB
B) 55 dB
C) 65 dB
D) 45 dB
Explanation
Noise is the most dangerous pollutant of the environment. The unit of sound level is decibel. In a residential areas, during day time 55 dB of sound (45 dB at night) is permissible through noise pollution control law.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.