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Question: Answered & Verified by Expert
If the reading in Fahrenheit scale is twice the reading in Celsius scale, then the reading in Fahrenheit scale is
PhysicsThermal Properties of MatterTS EAMCETTS EAMCET 2023 (13 May Shift 2)
Options:
  • A $100^{\circ} \mathrm{F}$
  • B $120^{\circ} \mathrm{F}$
  • C $80^{\circ} \mathrm{F}$
  • D $320^{\circ} \mathrm{F}$
Solution:
2724 Upvotes Verified Answer
The correct answer is: $320^{\circ} \mathrm{F}$
$\begin{aligned} & \text { Given } \mathrm{F}=2 \mathrm{C} ; \mathrm{C}=\frac{\mathrm{F}}{2} \\ & \Rightarrow \frac{\mathrm{F}-32}{9}=\frac{\mathrm{C}}{5} \Rightarrow \frac{\mathrm{F}-32}{9}=\frac{\mathrm{F}}{2 \times 5} \\ & \Rightarrow 10 \mathrm{~F}-320=9 \mathrm{~F} \\ & \Rightarrow \mathrm{F}=320^{\circ} \mathrm{F}\end{aligned}$

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