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A liquid is filled in a spherical contai...

A liquid is filled in a spherical container of radius R up to a height `h`. At this position the liquid surface at the end is also horizontal. The contact angle is

A

0

B

`cos^(-1)((R-h)/(R))`

C

`cos^(-1)((h-R)/(R))`

D

`sin^(-1)((R-h)/(R))`

Text Solution

Verified by Experts

The correct Answer is:
B
`cos theta = (R-h)/(R)`
`theta=cos^(-1)((R-h)/(R))`
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