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If $γ_{g} < γ_{R}$ and $γ_{g}$ is $' + V e'$ then $(h e r e γ_{g} i s c o e f f i c i e n t o f v o l u m e e x p a n s i o n o f g l a s s; γ_{R} i s c o e f f i c i e n t o f R e a l e x p a n s i o n o f l i q u i d)$

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liquid level falls

liquid level constant

liquid level raises

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Correct option is C

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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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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If $γ_{g} < γ_{R}$ and $γ_{g}$ is $' + V e'$ then $(h e r e γ_{g} i s c o e f f i c i e n t o f v o l u m e e x p a n s i o n o f g l a s s; γ_{R} i s c o e f f i c i e n t o f R e a l e x p a n s i o n o f l i q u i d)$