EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 13 - Viscosity and Surface Tension>Assam CEE 2016>Q 3

MEDIUM

Assam CEE

IMPORTANT

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Two glass plates are separated by water and the distance between the plates is $0.10 mm$ . If the surface tension of water is $75 dynes per cm$ and area of each plate wetted by water is $8 {cm}^{2}$ , the force applied to separate the two plates is,

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Important Questions on Viscosity and Surface Tension

EASY

Assam CEE

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 13 - Viscosity and Surface Tension>Assam CEE 2017>Q 1

The radius of a soap bubble is increased from

1 cm

to

2 cm

. The surface tension of the solution is

0.025 N m^{- 1}

. The work done on the bubble is

HARD

Assam CEE

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 13 - Viscosity and Surface Tension>Assam CEE 2016>Q 2

A metallic spherical ball of mass

M

is dropped into a liquid and after some time it reaches a terminal velocity of

v

. If another spherical ball of mass

8 M

made of the same metal is dropped into the same liquid, then its terminal velocity will be (assume the spheres to be uniformly dense)

MEDIUM

Assam CEE

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR PHYSICS>Chapter 13 - Viscosity and Surface Tension>Assam CEE 2016>Q 3

Two glass plates are separated by water and the distance between the plates is

0.10 mm

. If the surface tension of water is

75 dynes per cm

and area of each plate wetted by water is

8 {cm}^{2}

, the force applied to separate the two plates is,