Properties of Solids & Liquids (AIIMS Physics): Questions 29 - 32 of 48

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Question number: 29

» Properties of Solids & Liquids » Elastic Behavior

MCQ▾

Question

Find the elastic potential energy of water at depth of 800 m. Compressibility of water is 5×1010m2N , density of water 1×103kgm3 , g=10ms2

Choices

Choice (4) Response
a.

0.8×104Jm3

b.

1.6×104Jm3

c.

3.2×104Jm3

d.

3.2Jm3

Question number: 30

» Properties of Solids & Liquids » Viscosity

MCQ▾

Question

Calculate the volume of water flowing in 20 minute through a horizontal tube of 0.4 cm diameter, 80 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.

15.8×105m3

b.

31.4×105m3

c.

15.8×103m3

d.

31.4×103m3

Question number: 31

» Properties of Solids & Liquids » Pressure Due to a Fluid Column

MCQ▾

Question

The pressures of water in a pipe when the tap is open and closed are respectively 4×105Nm2 and 4.5×105Nm2 . With the open tap the velocity of water flowing is –

Choices

Choice (4) Response
a.

20ms

b.

10ms

c.

15ms

d.

5ms

Question number: 32

» Properties of Solids & Liquids » Stress-Strain Relationship

MCQ▾

Question

A metal wire of cross – sectional area 7×106m2 is held taut at 350C between two rigid supports with negligible tension in it. Find the tension developed in the wire if it is cooled to 250C .

(Given α of metal =2×105K1 and Y=1×1011Nm2 )

Choices

Choice (4) Response
a.

900 N

b.

700 N

c.

760 N

d.

840 N

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