Momentum and CollisionHard
Question
A thin liquid film formed between a U-shapedwire and a light slider supports a weight of1.5 × 10-2 N (see figure). The length of theslider is 30 cm and its weight negligible. Thesurface tension of the liquid film is :-
Options
A.0.025 Nm-1
B.0.0125 Nm-1
C.0.1 Nm-1
D.0.05 Nm-1
Solution
weight = mg = 1.5 × 10-2 N (given)
length = l = 30 cm (given)
= 0.3 m
2Tl = mg
= 0.025 N/m
length = l = 30 cm (given)
= 0.3 m
2Tl = mg
= 0.025 N/mCreate a free account to view solution
View Solution FreeMore Momentum and Collision Questions
A large open tank has two holes in the wall. One is square hole of side L at a depth y from from the top and the other i...Two liquids of densities d1 and d2 are flowing in identical capillaries under same pressure difference. If t1 and t2 are...You are holding a bottle of sparkling water inside a car moving forward. When the driver applies the brakes :-...The ring of radius 1m is lying on the surface of liquid. It is lifted from the liquid surface by a force of 4 Newtons in...A piece of ice with a stone frozen in it on water is kept in a beaker. The level of water when ice completely melts -...