AIIMS (All India Institute of Medical Sciences) Physics: Questions 127 - 132 of 500

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Question number: 127

» Wave Optics » Interference

Appeared in Year: 2005

MCQ▾

Question

When exposed to sunlight, thin films of oil on water often exhibit brilliant colors due to the phenomenon of – [AIIMS]

Choices

Choice (4) Response

a.

Dispersion

b.

Interference

c.

Diffraction

d.

Polarization

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Question number: 128

» Magnetic Effects of Current and Magnetism » Cyclotron

Appeared in Year: 2001

MCQ▾

Question

Cyclotron is used to accelerate – [AIIMS]

Choices

Choice (4) Response

a.

Electrons

b.

Positive ions

c.

Neutrons

d.

Negative ions

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Question number: 129

» Electromagnetic Induction & Alternating Currents » AC Generator and Transformer

Appeared in Year: 1997

MCQ▾

Question

The primary winding of a transformer has 500 turns whereas its secondary has 5000 turns. The primary is connected to a supply of 20 V, 50 Hz. The secondary will have an output of – [AIPMT]

Choices

Choice (4) Response

a.

2 V, 5 Hz

b.

2 V, 50 Hz

c.

200 V, 50 Hz

d.

200 V, 500 Hz

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Question number: 130

» Current Electricity » Temperature Dependence of Resistance

Appeared in Year: 2003

MCQ▾

Question

Fuse wire is a wire of [AIPMT, AIIMS 1999]

Choices

Choice (4) Response

a.

High resistance and low melting point

b.

Low resistance and low melting point

c.

High resistance and high melting point

d.

Low resistance and high melting point

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Question number: 131

» Electromagnetic Induction & Alternating Currents » Self and Mutual Inductance

Appeared in Year: 1998

MCQ▾

Question

Transformer works on the basis of the following phenomenon –

[AIIMS, RPMT-89]

Choices

Choice (4) Response

a.

Electrical discharge

b.

Mutual induction

c.

Self-induction

d.

Generation of electro-magnetic waves.

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Question number: 132

» Properties of Solids & Liquids » Boyle's Law & Applications

Appeared in Year: 1982

MCQ▾

Question

When a large bubble rises from the bottom of a lake to the surface, its radius doubles. If atmospheric pressure is equal to that of column of water height H, then the depth of lake is: [AIPMT 1989,1992; AIIMS 95; AFMC 1997; BHU 2004]

Choices

Choice (4) Response

a.

H

b.

7H

c.

2H

d.

8H

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