Q135 / 160 · TS EAMCET 2025 (03 May Shift 1) · Physics

To increase the length of a metal rod by $0.4 \%$, the temperature of the rod is to be increased by (Coefficient of linear expansion of the metal $=20 \times 10^{-6}{ }^{\circ} \mathrm{C}^{-1}$ )

A
373 K
B
473 K
Correct answer
C
200 K
D
100 K

Hence, the correct answer is option: 'C'.

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