AIIMS Physics: Questions 435 - 438 of 500

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Question number: 435

» Dual Nature of Matter and Radiation » De-Broglie Relation

MCQ▾

Question

A proton moves on a circular path of radius 4.2×103m in a perpendicular magnetic field of 0.490T . The De Broglie wavelength associated with the proton will be –

Choices

Choice (4) Response

a.

0.002

b.

0.2

c.

2

d.

0.02

Question number: 436

» Electromagnetic Induction & Alternating Currents » Self and Mutual Inductance

MCQ▾

Question

A choke coil consists of 150 turns wound on a high permeability core. If the relative permeability is 3540, permeability of free space is 1.26×106Hm , coil length is 5 cm and cross section area is 5×104m2 then the value of the inductance of coil is –

Choices

Choice (4) Response

a.

3H

b.

1H

c.

20H

d.

8H

Question number: 437

» Atoms and Nuclei » Radioactive Decay Law

Appeared in Year: 2003

MCQ▾

Question

Initial decay rate of a substance is 800disintegrationsec . If half life of substance is 1sec . then after three second the decay rate will be – [RPMT]

Choices

Choice (4) Response

a.

100disintegrationsec

b.

400disintegrationsec

c.

200disintegrationsec

d.

800disintegrationsec

Question number: 438

» Dual Nature of Matter and Radiation » Photoelectric Effect

Appeared in Year: 2009

MCQ▾

Question

Monochromatic light of wavelength 667nm is produced by a helium neon laser. The power emitted is 9mW . The number of photons arriving per second on the average at a target irradiated by this beam is –

[AIPMT]

Choices

Choice (4) Response

a.

3×1016

b.

9×1017

c.

9×1015

d.

3×1019

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