Physics, 02.01.2020 20:31 kentavonwilliam
Asteel scale measures the length of a copper rod as 80cm when both are at 20°c , the caliberation temperature of the scale . what would the scale read for the length of the rod when both are at 40°c,
given coefficient of linear expansion of steel =1.1×10^-5°c^-1
coefficient of linear expansion of copper =1.7×10^-5°c^-1
a. 80.0096 cm
b. 80.0272 cm
c. 1 cm
d. 25.2 cm
Answers: 3
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Asteel scale measures the length of a copper rod as 80cm when both are at 20°c , the caliberation te...
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