While measuring the thermal conductivity of a liquid, we keep the upper part hot and the lower part cool because

Radiation gets stopped in this way

Heat conduction is easier downwards

Convection gets stopped in this way

It is easier and more convenient to do so

While measuring the thermal conductivity of a liquid, we keep the uppe

1.	While measuring the thermal conductivity of a liquid, we keep the upper part hot and the lower part cool because
A.	Heat conduction is easier downwards
B.	Convection gets stopped in this way
C.	Radiation gets stopped in this way
D.	It is easier and more convenient to do so
Answer» C. Radiation gets stopped in this way