AIIMS (All India Institute of Medical Sciences) Physics: Questions 346 - 350 of 500

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Question number: 346

» Work, Energy and Power » Work-Energy Theorem

MCQ▾

Question

Ratio of mass of proton and mass of electron is nearly about 1840. Now, if proton is accelerated by a potential difference of 2 KV, its kinetic energy is –

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 347

» Kinetic Theory of Gases » Kinetic Energy and Temperature

MCQ▾

Question

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

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 348

» Electromagnetic Induction & Alternating Currents » Reactance and Impedance

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.

25.12 Ω

c.

8.20 Ω

d.

9.14 Ω

Question number: 349

» Thermodynamics » Concept of Temperature

MCQ▾

Question

A large steel wheel is to be fitted on to a shaft of the same material. At Equation , 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 Equation for steel Equation ).

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 350

» Properties of Solids & Liquids » Young's Modulus

MCQ▾

Question

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

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

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