Question

The upper fixed point of a thermometer in Celsius scale is

• A. ${100}^{o}C$
• B. $0^{o}C$
• C. $4^{o}C$
• D. ${50}^{o}C$

Answer 1

The correct option is A

${100}^{o}C$

The correct option is A: ${100}^{o}C$

Explanation:

1. The upper fixed point on a thermometer is the highest measurable temperature on that thermometer.
2. In a thermometer with Degree Celsius scale, the highest measurable temperature is ${100}^{o}C$.

Hence the correct option is Option A. ${100}^{o}C$.