AIIMS Physics: Questions 262 - 265 of 500

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Question number: 262

» Oscillations and Waves » Standing Waves in Strings and Organ Pipes

MCQ▾

Question

A string in a musical instrument is 80 cm long and its fundamental frequency is 1000 Hz. If a frequency of 1400 Hz is to be produced, then required length of string is –

Choices

Choice (4) Response

a.

62.4 cm

b.

57.1 cm

c.

65 cm

d.

72.3 cm

Question number: 263

» Gravitation » Kepler's Laws of Planetary Motion

MCQ▾

Question

The distance of two planets from the sun are in the ratio 3: 1. Assuming that they are moving in circular orbits, what will be the ratio of their time periods?

Choices

Choice (4) Response

a.

1:3

b.

33:1

c.

1:33

d.

3:1

Question number: 264

» 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: 265

» 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

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