EASY
11th West Bengal Board
IMPORTANT
Earn 100

Explain why surface tension of a liquid is independent of the area of the surface.

Important Questions on Fluid Statics

EASY
11th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART I : CLASS 11>Chapter 13 - Fluid Statics>EXERCISE>Q 83
What is angle of contact ? In which cases it is acute and in which cases it is obtuse ?
EASY
11th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART I : CLASS 11>Chapter 13 - Fluid Statics>EXERCISE>Q 84
The angle of contact of mercury with glass is obtuse, while that of water with glass is acute. Why ?
EASY
11th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART I : CLASS 11>Chapter 13 - Fluid Statics>EXERCISE>Q 85
Which factors angle of contact depends upon ? 
EASY
11th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART I : CLASS 11>Chapter 13 - Fluid Statics>EXERCISE>Q 86
The shape of water meniscus in contact with glass is concave upwards, while that of mercury is convex upward. Why ?
EASY
11th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART I : CLASS 11>Chapter 13 - Fluid Statics>EXERCISE>Q 87
Why water on a clean glass tends to spread. While mercury on the same surface tends to form droplets ?
EASY
11th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART I : CLASS 11>Chapter 13 - Fluid Statics>EXERCISE>Q 89
Water sticks to the walls of a glass tube, but mercury does not. Why ?
EASY
11th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART I : CLASS 11>Chapter 13 - Fluid Statics>EXERCISE>Q 90
Why oil spreads over water ?
EASY
11th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART I : CLASS 11>Chapter 13 - Fluid Statics>EXERCISE>Q 91
Why it is easier to wash clothes in hot water than in cold water ?