Two large glass plate are placed vertically and parallel to each other inside a tank of water with separation between the plate is equals to 1 mm .Find the rise of water in the space between the plates surface tension of water equals 0.075 Nm^-1
Asked by Harshjaiswal9450
27th April 2020,
12:26 PM
Answered by Expert
Answer:
Surface tension force is acting along the length l on both the plates.
Hence surface tension force = T × 2 l
surface tension force is balanced by weight of liquid column, l×h×d×ρ
where h is rise of water column, d is distance between plates and ρ is density
Hence we have, T × 2 l = l×h×d×ρ×g
h = 2T / ( d×ρ×g ) = ( 2 × 0.075 ) / ( 1 × 10-3 × 1000×9.8 ) = 0.0153 m ≈ 15 mm
Answered by Expert
27th April 2020,
2:43 PM
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