AIIMS (All India Institute of Medical Sciences) Physics: Questions 460 - 463 of 500

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Question number: 460

» Atoms and Nuclei » Half Life and Mean Life

Appeared in Year: 2004

MCQ▾

Question

The half – life of radium is about 1600 years. Of 100 g of radium existing now, 25 g will remain un – decayed after – [AIPMT]

Choices

Choice (4) Response

a.

3200 years

b.

2400 years

c.

4800 years

d.

6400 years

Question number: 461

» Atoms and Nuclei » Composition and Size of Nucleus

Appeared in Year: 2002

MCQ▾

Question

A deuteron is bombarded on nucleus then – particle is emitted then product nucleus is – [AIPMT]

Choices

Choice (4) Response

a.

M

b.

Be

c.

N

d.

Z

Question number: 462

» Electromagnetic Induction & Alternating Currents » Induced EMF and Current

Appeared in Year: 1998

MCQ▾

Question

Two coil have a mutual inductance . The current changes in first coil according to equation , where and . The maximum value of induced emf in second coil is – (AIPMT)

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 463

» Magnetic Effects of Current and Magnetism » Ampere's Law

MCQ▾

Question

A long straight wire carries a constant current distributed uniformly over a cross section perpendicular to the axis of the wire. If the current density is . The magnitudes of the magnetic field at

(a) 3.0 mm from the axis of the wire and

(b) 6.0 mm from the axis of the wire is: -

Choices

Choice (4) Response

a.

b.

c.

d.

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