D), increases. The object absorbs light energy which in turn (energy is energy) usually involves absorbing heat as well.
Answer:
The correct answer is part 'c' 160 dB
Explanation:
When noise levels of different intensities are superimposed the resultant intensity is given by the equation

where,
is the intensity of a general sound level
Since we have 10000 fans each producing sound of 80dB thus the resultant intensity is given using the above formula as


V=IR
Potential Difference (v)= Current (A) * Resistance (Ω)
As V increases, R also increases.
The answer to your question is A. Have a great day