Question

Convert ${25}^{o}C$ temperature difference into Fahrenheit scale.

• A. ${25}^{\circ }F$
• B. ${45}^{\circ }F$
• C. ${57}^{\circ }F$
• D. ${77}^{\circ }F$

Answer 1

Answer: (B)

${45}^{\circ }F$

We know the relation between Celsius and Fahrenheit scale is,

$F=32+\frac{9}{5}C$

Hence, $\Delta F=\frac{9}{5}\Delta C$

$\Delta F=\frac{9}{5}\times 25={45}^{o}F$

Answer is option B.