MHT CET 2025 Physics question

Physics Thermal Properties of Matter MHT CET 2025

The volume of a metal sphere increases by 0.33 % when its temperature is raised by 50C. The coefficient of linear expansion of the metal is

(A)2.2 x 10/ CCorrect
(B)6.6 x 10/ C
(C)13.2 x 10/ C
(D)19.8 x 10/ C

Answer: (A)

Solution

Fractional volume change , so the coefficient of volume expansion is . For an isotropic solid , so

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Question ID VK-102632