MEDIUM
UGC NET Paper 1
IMPORTANT
Earn 100

Which of the following statements is true with regard to noise and noise pollution?
(a)Decibel is the linear scale of noise measurement
(b)A jet plane is one of the highest decibel sources of ·noise
(c)A change from 40 dB to 80 dB is exactly double in loudness
(d)Noise cannot be shielded

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UGC NET Paper 1
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UGC NET Paper 1
IMPORTANT

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UGC NET Paper 1
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