(A) : For a constant volume gas thermometer one should fill the gas at high temperature and low pressure.
( R) : Many of the properties of gases are common at low pressures and high temperatures.

Options

A. Both (A) and (R) are true and (R) is the correct explanation of (A)
B. Both (A) and (R) are true and (R) is not the correct explanation of (A)
C. (A) is true but (R) is false
D. Both (A) and (R) are false

Answer

B