The coefficient of cubical expansion of a metal is7.2 x 10^{-5}^{-1}. Then its superficial expansion will be |
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(a) |
^{-1} |
(b) |
^{-1} |
(c) |
7.2^{-1} |
(d) |
none of these |
The coefficient of cubical expansion of a metal is7.2 x 10^{-5}^{-1}. Then its superficial expansion will be |
|||||||
(a) |
^{-1} |
(b) |
^{-1} |
(c) |
7.2^{-1} |
(d) |
none of these |