A liquid is filled in a spherical container of radius \( R \) till a height \( h \). At this pos...

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A liquid is filled in a spherical container of radius \( R \) till a height \( h \). At this positions the liquid surface at the edges is also horizontal. The contact angle is
(1) 0
(2) \( \cos ^{-1}\left(\frac{R-h}{R}\right) \)
(3) \( \cos ^{-1}\left(\frac{h-R}{R}\right) \)
(4) \( \sin ^{-1}\left(\frac{R-h}{R}\right) \)
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