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  • A hole is drilled in a metal sheet. At .  the diameter of hole is 5 cm. When the sh

A hole is drilled in a metal sheet. At 27^{\circ}C.  the diameter of hole is 5 cm. When the sheet is heated to 177^{\circ}C,the change in the diameter of hole is d\times 10^{-3}cm. The value of d will be ________ if coefficient of linear expansion of the metal is 1.6\times 10^{-5}/^{\circ}C.

Option: 1

12


Option: 2

__


Option: 3

__


Option: 4

__


Answers (1)

\begin{aligned} & \Delta \mathrm{D}=\mathrm{D} \propto \Delta \mathrm{T} \\ & \Delta \mathrm{D}=5 \times 1.6 \times 10^{-5} \times(177-27) \\ & \Delta \mathrm{D}=12 \times 10^{-3} \mathrm{~cm} \end{aligned}

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Kshitij

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