InterviewSolution
Saved Bookmarks
InterviewSolution
| 1. |
The variation of length of two metal rods A and B with change in temperature is shown in Fig. the coefficient of linear expansion `alpha_A` for the metal A and the temperature T will be?( alpha_(A)=3x10^(-6)/ C )A. `alpha_(A) = 3 xx 10^(-6 )//^(@)C, 500^(@)C`B. `alpha_(A) = 3 xx 10^(-6 )//^(@)C, 222.22^(@)C`C. `alpha_(A) = 27 xx 10^(-6) //^(@)C, 500^(@)C`D. `alpha_(A) = 27 xx 10^(-6) //^(@)C, 222.22^(@)C` |
|
Answer» Correct Answer - D Slope of the line `A = (1006 - 1000)/(T) = (DeltaL)/(DeltaT)` `(6)/(T) = 1000mm alpha_(A)` ……..(1) similarly for `B` line `(2)/(T) = 1002mm alpha_(B)` …….(2) From `(1)` and `(2) alpha_(A) = 3alpha_(B)` |
|