EASY
11th West Bengal Board
IMPORTANT
Earn 100

The shape of water meniscus in contact with glass is concave upwards, while that of mercury is convex upward. Why ?

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 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 ?
EASY
11th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART I : CLASS 11>Chapter 13 - Fluid Statics>EXERCISE>Q 92
If one end of a glass rod is held in the flame of Bunsen burner and it melts, it is found that the end becomes round. Why ?
MEDIUM
11th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART I : CLASS 11>Chapter 13 - Fluid Statics>EXERCISE>Q 93
Why tent and umbrella are water-proof ?
MEDIUM
11th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART I : CLASS 11>Chapter 13 - Fluid Statics>EXERCISE>Q 94
Pieces of camphor have zigzag motion on the surface of water. Why ? What happens when a drop of oil is poured over the water and why ?
EASY
11th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART I : CLASS 11>Chapter 13 - Fluid Statics>EXERCISE>Q 95
What happens if wax is coated on a paper or cloth ?