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Of the materials listed wood is the best insulator. It would be the least hot if exposed to similar temperatures.
No, they have different definitions
Answer:
(c) 97 dB sound intensity level
Explanation:
We have given the intensity of the loud car horn 
We know that 
Now the sound intensity level is given by
, which is nearly equal to 97
So the sound intensity level will be 97 dB
So option (c) will be the correct option