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The active element of a certain laser usbmade
of a glass rod 35 cm long and 1.3 cm in
diameter. Assume the average coeffeicent of
linear expansion of the glass is equal to 9.00 X
10^-6 (celcius)^-1. the temperature of the rod
increases by 60 celcius
A) what is the increase in its length?
B) what is the increase in its diameter?
C) What is the increase in its volume?

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