The length of an aluminium bar of length 80 CM increased by 1 millimetre on heating what is the final temperature of the bar if it was initially at temperature 20°c?(give coefficient of linear expansion of Aluminium=25into 10-6/°c)100- 150 words.
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Given
length of aluminum bar=80cm
change in length=1mm
t1=20, t1=?
length of aluminum bar=80cm
change in length=1mm
t1=20, t1=?
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