Q.
If γg<γR and γg is '+Ve' then(here γg is coefficient of volume expansion of glass; γR is coefficient of Real expansion of liquid)
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a
liquid level falls
b
liquid level constant
c
liquid level raises
d
None
answer is C.
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Detailed Solution
when liquid in a container is heated, container expands initially, hence liquid level falls, then liquid expands, finally liquid level in container raisesγr=γa+γ⇒γa=γr-γg=+ive as γr>γg∴Liquid level rises
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