We use cookies to improve your experience and understand how Examtube is used. You can accept analytics cookies or continue with essential cookies only.
Privacy policy2 public questions tagged with this topic.
The capillary rise formula (h = 2Scosθ/ρgr) shows that h is inversely proportional to radius (r) because the pressure difference due to surface tension (2S/r) must balance the weight of the liquid column, which depends on h.
Ref: NCERT Class 11 Physics, Thermal Properties and Gravitation.
h = 2Scosθρga. S = 0.0727N/m, ρ = 1000kg/m3, g = 10m/s2, a = 0.55×10−3m. h = 2×0.0727×11000×10×0.55×10−3 = 0.02645m = 2.645cm. As per NCERT, applying relevant law/formula with correct units and sign convention leads to 2.7 cm. This satisfies dimensional consistency and physical conditions given, so option C is scientifically correct.
Ref: NCERT Class 11 Physics, Thermal Properties and Gravitation.
This page is supported by advertisements. An ad blocker is stopping those ads from loading, so we cannot show the rest of the page yet. Pause the blocker for this site, then continue. We will check again automatically.
You can keep using this site after advertisements are allowed to load.
