Question
The pressure of the gas, filled in the bulb of a constant volume gas thermometer are 60 cm and 80 cm of mercury column at 0°C and 100°C respectively. If its bulb is immersed in a liquid at 80°C temperature. Then its pressure in mercury column will be:-
(1)66 cm
(2)70 cm
(3)76 cm
(4)78 cm