Questions
Two rods having length l and 2l, made of materials with linear expansion coefficient and are soldered together so as to form a single rod of length 3l. The equivalent coefficient of linear expansion for the composite rod is
detailed solution
Correct option is B
(l+2l)αc.Δθ=l.2α.Δθ+2l.α.Δθ⇒αc=4α3Talk to our academic expert!
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