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The diameter of a metal ring is and coefficient of linear expansion is , if the temperature of the ring is increases by , The circumference of the ring will increase by where
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Correct option is A
circumference of ring is S=2πR=2πD2 S=πD differentiate ΔS=πΔD coefficient of linear expansion α=ΔDDΔt⇒ΔD=DαΔt;ΔS=xπDα ; substitute in above equation xπDα=πDαΔt x=Δt given Δt =1 ⇒x=1Similar Questions
The coefficient of linear expansion of brass and steel are and . If we take a brass rod of length and steel rod of length at 0oC, their difference in length will remain the same at all temperatures if
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