AIIMS (All India Institute of Medical Sciences) Physics: Questions 347 - 352 of 500

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Question number: 347

» Kinetic Theory of Gases » Kinetic Energy and Temperature

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MCQ▾

Question

At temperature T (in kelvin), the root mean square speed of a gas molecule is times its value at . Find the value of T.

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 348

» Electromagnetic Induction & Alternating Currents » Reactance and Impedance

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MCQ▾

Question

The reactance of an inductance of 0.04H for 100 Hz A. C. is –

Choices

Choice (4)Response

a.

10.55 Ω

b.

8.20 Ω

c.

25.12 Ω

d.

9.14 Ω

Question number: 349

» Thermodynamics » Concept of Temperature

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MCQ▾

Question

A large steel wheel is to be fitted on to a shaft of the same material. At , the diameter of the shaft is 10.00 cm and the diameter of the hole is 9.98 cm. The shaft is cooled using ‘dry ice’. At what temperature of the shaft does the wheel slip into the shaft?

(Give for steel ).

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 350

» Properties of Solids & Liquids » Young's Modulus

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MCQ▾

Question

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

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 351

» Communication System » Sky and Space Wave Propagation

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MCQ▾

Question

In short wave communication waves of which of the following frequencies will be reflected back by the ionosphere layer having electron density 1018 per m3?

Choices

Choice (4)Response

a.

12 GHz

b.

15 GHz

c.

3 GHz

d.

9 GHz

Question number: 352

» Kinetic Theory of Gases » Kinetic Theory of Gases

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MCQ▾

Question

For an ideal gas at 330 K temperature, the average translation energy of molecules is , and the rms speed if molecules is . Find the corresponding value at temperature ,

Choices

Choice (4)Response

a.

b.

c.

d.

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