Question on: JAMB Physics - 1990
A bar of initial length /0 is heated through a temperature change (\Delta)t to a new length I. The linear expansivity, a, of the bar is
A
\(\frac{/ - /_o}{/ \Delta t}\)
B
\(\frac{/ - /_o}{/_o \Delta t}\)
C
/o(1 + \(\Delta\) t)
D
\(\frac{/ - /_o}{/(1 + \Delta t)}\)
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Correct Option: B
(\frac{L - L_o}{L_o \Delta t})
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