Questions
Two Brass rods of same length but with different diameters are heated by equal amounts of heat. The expansion is
a
Same in both rods
b
more in thick rod
c
more in thin rod
d
depends on material of rods
detailed solution
Correct option is C
If Q is the heat supplied and Δt is the rise in temperature.ThenQ = m.s.ΔtSince mass of thick rod is more , rise in temperature in thick rod is less.Also , increase in length = l ΔtSo option - (3) is right.Talk to our academic expert!
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