Question

Which of the following represents the smallest temperature change?

• A. $1^{0}C$
• B. $1^{0}F$
• C. $1K$
• D. Both (a) and (b)

Answer 1

The correct option is B

$1^{0}F$

1. There are $180$ divisions in the Fahrenheit scale between the ice point and steam point while there are only $100$ divisions in a Celsius scale. And one scale division of a Kelvin scale is same as that of a Celsius scale.
2. So, $1^{0}F$ indicates a smaller rise in temperature than $1^{0}C$ and $1K$.

Hence, option (B) is the correct answer.