a brass rod of length 0.40 cm and steel rod of length 0.60cm, both are initially at 0 degree celsius are heated to 75 degree celsius. if the increase in length is the same for both the rods, calculate the linear expansivity of brass. given alpha for steel is 12*10 power -6​

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i just did this and got a 100.

there are no correct statementd on the list of choices you provided.

increase masses, decrease separation