Which of the following statements is/are correct for Celsius scale? 1. It was designed by Anders Celsius. 2. It is a metric scale of temperature. 3. It is called laboratory thermometer. Choose the correct option from the codes given below:

Options

A. 1 and 2
B. 2,3
C. 1,3
D. 1,2,3

Answer

a

Explanation

The Celsius scale temperature was designed by Anders Celsius (1701-1744). This scale tempera-ture is described in degree Celsius. It is a metric scale of temperature. The lower fixed point of the Celsius scale is taken as zero degree Celsius and the upper fixed point of this scale is taken as 100 degree Celsius. It is also called Clinical Ther-mometer.