A rod of silver of length ${100^ \circ }C$ at ${0^{\rm{o}}}C$ is hearted to ${100^{\rm{o}}}C$. It’s length is increased by 0.19 cm coefficient of cubical expansion the silver rod is [in $/{\,^ \circ }C$]

JEE PHYSICS MCQ: THERMAL PROPERTIES OF MATTER

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A rod of silver of length

{100^ \circ }C

{0^\mathrm{o}}C

is hearted to

{100^\mathrm{o}}C

. It’s length is increased by 0.19 cm coefficient of cubical expansion the silver rod is [in

/{\,^ \circ }C

]

View answer and explanation

Correct option: A

5.7 \times {10^{ - 5}}

Option A (

5.7 \times {10^{ - 5}}

) is correct because the coefficient of cubical expansion is three times the coefficient of linear expansion.