Question # 1

There is regular arrangement of molecules in:

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Amorphous solids

Crystalline solids

Both a and b

None of above

___ is correct relation.

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IT = 10^-4G

IT = 10⁴ G

IT = 10² G

IT = 10^-2 G

1 tesla =

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1 MAm^-1

1NA^-1m

1NA^-1m^-1

None of above

Which one is photo conductor.

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Copper

Selenium

Mercury

Aluminium

The value of e/m is smallest for

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Proton

Electron

Beta particle

Positron

Binding energy per nucleus for uranium is above:

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6.7 Mev

7.7 Mev

6.9 MeV

7.9 MeV

Balmer series lies in

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Visible region

Invisible region

Ultraviolet region

Infrared region

Which one of the following resistance is used to convert a Galvanometer into an ammeter.

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High resistance

Low resistance in series with galvanometer

Shunt

High resistance in series with galvanometer

The magnetic field inside solenoid is given:

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μ_∘nI²

μ_∘nI

μ_∘n/1²

μ_∘I/n

The solids are classified as

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Polymeric

Amorphous

Crystalline

All of above

The gain of transistor amplifier depends upon

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Resistance connected with collector

Resistance connected with base voltage

Input voltage

Output voltage

Selenium is a

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Insulator

Photoconductor

Conductor

First insulator then conductor

X- ray diffraction reveals that these are

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Particle type

Wave type

Both wave and particle

None of above

A.C. Generator based upon the

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Lenz's law

Maxwell's relation

Faradays law of electromagnet induction

Mutual induction

Which one has greater cone of impurity among all:

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Emitter

Base

Collector

All are pure

Binding energy for deuteron nucleus is given by

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2.8 MeV

2.23 MeV

2.28 MeV

2.25 MeV

When a wire of length 'l' and resistance R is cut into two equal parts then resistivity of each part.

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is doubled

Remains the same

Is halved

Is one fourth

A battery move a charge of 40 C around a circuit at constant rate in 20 Sec. The current will be.

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2 A

0.5 A

80 A

800 A

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