Two metal rods{A} and {B} each of length >50 {cm} and diameter4.0 {mm}are joined together at temperature 30{ }^{\circ} {C} . What is the change in length of the combined rod at230{ }^{\circ} {C} ?[Given linear expansion coefficients of rods {A} and {B} are respectively, 2.0 \times 10^{-5} {/}{ }^{\circ} {C} and 1.0 \times 10^{-5} {/}{ }^{\circ} {C}]

TS EAMCET 20-July-2022 Shift 1 Solved Paper

Section: Physics

Question : 96 of 160

Marks: +1, -0

Two metal rodsA and B each of length >50cm
and diameter4.0mmare joined together at temperature 30‌∘C
. What is the change in length of the combined rod at230‌∘C
?[Given linear expansion coefficients of rods A and B are respectively, 2.0×10−5/‌∘C and 1.0×10−5/‌∘C]

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