Subject :NSO Class : Class 6
Rohan conducted an experiment as shown here.
What could be the reason for the rise in the level of coloured liquid in the capillary within the test tube in step II?
AWhen test tube was placed in hot water bath, air present within the test tube expanded due to heat.
BWhen test tube was placed in hot water bath, air present within the test tube contracted due to heat.
CWater in the bath contracted due to placement of air-filled test tube in it.
DNone of these