Properties of Solids & Liquids (AIIMS Physics): Questions 37 - 40 of 48

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Question number: 37

» Properties of Solids & Liquids » Young's Modulus

MCQ▾

Question

The Young’s modulus of a rubber string 10 cm long and density 1.8kgm3 , is 6×108Nm2 , is suspended on the ceiling in a room. The increase in length due to its own weight will be:

Choices

Choice (4) Response

a.

1.5m

b.

1.5×1011m

c.

1.5×105m

d.

1.5×103m

Question number: 38

» Properties of Solids & Liquids » Viscosity

MCQ▾

Question

Calculate the volume of water flowing in 15 minutes through a horizontal tube of 0.4 cm diameter, 75 cm long. The pressure head across the ends of the tube is 30 cm of water column. Coefficient of viscosity of water is 9×104 S. I. units g=10ms2 .

Choices

Choice (4) Response

a.

14.1×104m3

b.

15.5×103m3

c.

25.1×103m3

d.

32.4×104m3

Question number: 39

» Properties of Solids & Liquids » Stress-Strain Relationship

MCQ▾

Question

A breaking strength of a wire of diameter 6mm is 3×106N . Find the breaking strength of another wire of the same material having diameter 3mm .

Choices

Choice (4) Response

a.

3×105N

b.

5×105N

c.

3.5×105N

d.

7.5×105N

Question number: 40

» Properties of Solids & Liquids » Boyle's Law & Applications

MCQ▾

Question

A uniform cylinder of density σ=5gcm3 and length L floats vertically completely immersed in two liquids with length L1 immersed in a liquid of density ρ1=1gcm3 and remaining length L2 immersed in the other liquid of density ρ2=2gcm3 as shown in figure. The ratio L1L2 will be equal to –

A uniform cylinder immersed in two liquids

A Uniform Cylinder Immersed in Two Liquids

In figure a uniform cylinder vertically completely immersed in two liquids is shown. L1 is the height of the cylinder in liquid 1 and L2 is the height of the cylinder in liquid 2.

Choices

Choice (4) Response

a.

34

b.

43

c.

14

d.

15

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