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Driver of a truck gets his steel petrol tank filled with `75 L` of petrol at `10^(@)C`. If a `alpha_("steel")` is `12 xx 10^(-6)//.^(@)C` and `gamma_("pet")` is `9.5 xx 10^(-4)//.^(@)C` the overflow of petrol at `30^(2)C` is -A. `7.31 L`B. `1.37 L`C. `13.7 L`D. `1.73 L` |
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Answer» Correct Answer - B `gamma_("steel") = 3alpha_("steel")` `=3 xx 12 xx 10^(-6)//.^(@)C` `= 36 xx 10^(-6)//.^(@)C` `gamma_(ob) = gamma_("Pet") - gamma_("steel")` `= 950 xx 10^(-6) -36 xx 10^(-6)` `= 912 xx 10^(-6)//.^(@)C` Overflow petrol `DeltaV = V_(1gammaob) Deltat` `= 75 xx 912 xx 10^(-6) xx 20` `= 1.500 xx 912 xx 10^(-6) = 1.37 L` |
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