Home
Class 11
PHYSICS
A thin liquid film formed between a U-sh...

A thin liquid film formed between a `U-`shaped wire and a light slider supports a weight of `1.5 xx 10^(-2)N`(see figure). The length of the slider is `30 cm` and its weight neligible. The surfaces tension of the liquid film is :

A

`0.0125 Nm^(-1)`

B

`0.1 Nm^(-1)`

C

`0.05 Nm^(-1)`

D

`0.025 Nm^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
D
`2TL = mg`
`T = (mg)/(2L) = (1.5 xx 10^(-2))/(2 xx 30 xx 10^(-2)) = (1.5)/(600) = 0.025 N//m`
Promotional Banner

Topper's Solved these Questions

  • SURFACE TENSION

    RESONANCE|Exercise Advanced Level Problems|18 Videos

  • SURFACE TENSION

    RESONANCE|Exercise Exercise- 3 PART - I|8 Videos

  • STRING WAVES

    RESONANCE|Exercise Exercise|32 Videos

  • UNITS, DIMENSION & MEASUREMENT

    RESONANCE|Exercise Exercise|27 Videos

Similar Questions

Explore conceptually related problems

A thin liquid film formed between a U-shaped wire and a light slider supports a weight of 1.5xx10^-2N (see figure). The length of the slider is 30cm and its weight negligible. The surface tension of the liquid film is

A thin film of liquid is formed in a rectangular frame of wire and a light slider supports a weight of (2.5 * 10^-2)N .The length of slider is 20cm and its weight negligible. The surface tension is liquid is

A U-shaped wire is dipped in a soap solution, and removed. A thin soap film formed between the wire and a light slider supports a weight of 1.5xx10^(-2)N (which includes the small weigh of the slider). The length of the slider is 30cm. What is the surface tension of the film?

The surface tension of a thin liquid film formed between a U shaped wire and a light slider of length 30 cm supporing a weight of 1.5xx10^(-2)N is

A wire is bent in the form of a U -shape and a slider of negligible mass is connecting the two vertical sides of the U-shape. This arrangement is dipped in a soap solution and lifted a thin soap film is formed in t he frame it supports a wegith of 2.0xx10^(-2) if the length of the slider is 40 cm whta is the surface tension of the film?

A thin soap film is formed on a U shaped wire loop having a slider (of negliglibe mass) of length 10 cm. it is found that the film can support a weight of 0.012 N, before it breaks. What is the surface tension of the film ?

A thin wire ring of 3 cm radius float on the surface of liquid. The pull required to raise the ring before the film breaks is 30.14xx10^(3)N more than its weight. The surface tension of the liquid (in Nm^(-1)) is

The surface energy of liquid film on a ring of area 0.15 m^(2) is (surface tension of liquid 5Nm^(-1) )