Noise level which can be tolerated by ears is

Written By Unknown on Wednesday, 9 November 2011 | 03:08


 Noise level which can be tolerated by ears is

a) 85 dB

b) 70 dB 

c) 120 dB 

d) 100 dB 

[Ans (a)]
Posted by Unknown at 03:08
Labels: , ,

0 comments:

Post a Comment

Subscribe to: Post Comments (Atom)
Related Posts Plugin for WordPress, Blogger...