A piece of substance of specific heat capacity 450Jkg\(^{-1}\)k\(^{1}\) falls through a vertical distance of 20m from rest. Calculate the rise in temperature of the substance on hitting the ground when all its energies are converted into heat. [g = 10ms\(^{-2}\)]
a
\(\frac{2}{9}\)ºC
b
\(\frac{4}{9}\)ºC
c
\(\frac{9}{2}\)ºC
d
\(\frac{9}{4}\)ºC
Explanation
Correct Option
bVideo Explanation
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