Question

The temperature of a body on Kelvin scale is found to be $XK$. When it is measured by a Fahrenheit thermometer, it is found to be $X^{o}F$. Then $X$ is

• A. $301.25$
• B. $574.25$
• C. $313$
• D. $40$

Answer 1

The correct option is B $574.25$

We know, $F=1.8T-459.67$

Where, $F$=Fahrenheit Temperature

$T$=Kelvin Temperature

Now, $F=X°F$ and $T=XF$, putting there we get,

$X=1.8X-459.67$

$\therefore X=\frac{459.67}{0.8}=574.25$