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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > In a vessel, as shown in figure, point P is just visible when no liquid is filled in vessel through a telescope in the air. When liquid is filled in the vessel completely, point Q is visible without

In a vessel, as shown in figure, point P is just visible when no liquid is filled in vessel through a telescope in the air. When liquid is filled in the vessel completely, point Q is visible without

as shown in figure In a vessel point P is just visible when no liquid is filled in vessel through a telescope in the air. When liquid is filled in the vessel completely point Q is visible without