Question

Which of the following pairs may give equal numerical values of the temperature of a body?

• A. Kelvin and platinum
• B. Celsius and Kelvin
• C. Fahrenheit and Kelvin
• D. None

Answer 1

The correct option is C Fahrenheit and Kelvin

Since Kelvin scale is always ahead from Celsius scale by amount of $273$ hence they can never have same value

On the other hand, relation between Fahrenheit and kelvin is

$\frac{T_K-273}{373-273}=\frac{T_F-32}{212-32}$

Put $T_K=T_F=x$

$\frac{x-272}{5}=\frac{x-32}{9}$

$x=574.6$

Fahrenheit and Kelvin may give equal numerical values of temperature.
Final answer (c)