|
Damage to hearing is caused by sound which exceeds |
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|
a) |
70 decibels |
b) |
100 decibels |
c) |
110 decibels |
d) |
120 decibels |
|
Damage to hearing is caused by sound which exceeds |
|||||||
|
a) |
70 decibels |
b) |
100 decibels |
c) |
110 decibels |
d) |
120 decibels |
(d)
Noise has been well defined as unwanted sound which is being dumped into the atmosphere to disturb the unwilling ear. Sound intensity of 100 dB becomes uncomfortable and 130 dB painful.