Mechanical Properties of Fluids Test

Result

Mechanical Properties of Fluids Test - 25

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Weekly Quiz Competition

Question 1
4 / -1

8 mercury drops coalesce to form one mercury drop, the energy changes by a factor of

A
1

B
2

C
4

D
6

Solution
Question 2
4 / -1

Work done in increasing the size of a soap bubble from a radius of 3 cm to 5 cm is nearly. (Surface tension of soap solution = 0.03 Nm^–1)

A
4π mJ

B
0.2π mJ

C
2π mJ

D
0.4π mJ

Solution
Question 3
4 / -1

The meniscus of mercury in the capillary tube is

A
Convex

B
Concave

C
Plane

D
Uncertain
Question 4
4 / -1

When the temperature is increased the angle of contact of a liquid

A
Increases

B
Decreases

C
Remains the same

D
First increases and then decreases
Question 5
4 / -1

The angle of contact between glass and mercury is

A
0^o

B
30^o

C
90^o

D
135^o
Question 6
4 / -1

Angle of contact of a liquid with a solid depends on

A
Solid only

B
Liquid only

C
Both solid and liquid only

D
Orientation of the solid surface in liquid
Question 7
4 / -1

If the surface of a liquid is plane, then the angle of contact of the liquid with the walls of container is

A
Acute angle

B
Obtuse angle

C
90^o

D
0^o
Question 8
4 / -1

For which of the two pairs, the angle of contact is same?

A
Water and glass; glass and mercury

B
Pure water and glass; glass and alcohol

C
Silver and water; mercury and glass

D
Silver and chromium; water and chromium
Question 9
4 / -1

A glass plate is partly dipped vertically in the mercury and the angle of contact is measured. If the plate is inclined, then the angle of contact will

A
Increase

B
Remain unchanged

C
Increase or decrease

D
Decrease
Question 10
4 / -1

The liquid meniscus in capillary tube will be convex, if the angle of contact is

A
Greater than 90^o

B
Less than 90^o

C
Equal to 90^o

D
Equal to 0^o

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Re-Attempt Weekly Quiz Competition

Mechanical Properties of Fluids Test - 25

Result

Mechanical Properties of Fluids Test - 25

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Rank

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SHARING IS CARING

Question 1

1

2

4

6

Solution

Question 2

4π mJ

0.2π mJ

2π mJ

0.4π mJ

Solution

Question 3

Convex

Concave

Plane

Uncertain

Question 4

Increases

Decreases

Remains the same

First increases and then decreases

Question 5

0o

30o

90o

135o

Question 6

Solid only

Liquid only

Both solid and liquid only

Orientation of the solid surface in liquid

Question 7

Acute angle

Obtuse angle

90o

0o

Question 8

Water and glass; glass and mercury

Pure water and glass; glass and alcohol

Silver and water; mercury and glass

Silver and chromium; water and chromium

Question 9

Increase

Remain unchanged

Increase or decrease

Decrease

Question 10

Greater than 90o

Less than 90o

Equal to 90o

Equal to 0o

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0^o

30^o

90^o

135^o

90^o

0^o

Greater than 90^o

Less than 90^o

Equal to 90^o

Equal to 0^o