When evaporation occurs liquid absorbs heat from the surroundings to get converted to its vapour form as a result, there is an overall decrease in the heat leading to cooling of the liquid.
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from one energy form to one
The speed of sound will increase because the rate at which the air particles move will increase. As rarefaction and compressions are formed at a faster rate, the frequency increases, thereby increasing the speed.
Answer:
option A
Explanation:
given,
area of the plate = A
distance = d

where
C is the capacitance
V is the potential difference
The capacitance of the parallel plate capacitor, at the beginning, is given by

where ε₀ is the permittivity of free space,

now, the distance is doubled
d' = 2 d
while the potential difference is kept constant. Therefore, we can calculate the new potential energy:



Hence, the correct answer is option A