Subject :NSO Class : Class 7
In the experiment below, when the flask
was placed in hot water, the level of the drop of
ink dropped and then rose because the __________ expanded first, followed by the expansion
of _______.
(A) Flask; air in the flask
(B) Air in the flask; flask
(C) Water; air in the flask
(D) Air in the flask; water.
Ans 1:
Class : Class 7
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