Two iron bars of same length with unequal radii are heated for the same rise in temperature. The linear expansion will be
A. more in thin bar.
B. more in thick bar.
C. same for both.
D. less in thick bar.
Answer:A
Two iron bars of same length with unequal radii are heated for the same rise in temperature. The linear expansion will be
A. more in thin bar. B. more in thick bar. C. same for both. D. less in thick bar.