Question # 1

The anodes in cathode ray oscilloscope.

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Control number of waves

Control brightness of sept formed

Accelerate as well as focus beam

Negative potential w.r.t to chithode

An atom can reside in excited state for

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10^-8 second

One second

10^-10 second

More than one second

The negative sign with induced emf in Faraday's law is in accordance with

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Lenz's law

Amperes law

Boyle's law

Gauss law

The 1^st Bohr atom in the hydrogen atom has radius

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3.56 x 10^-10 m

0.053 x 10^-11 m

0.53 x 10^-11 m

5.30 x 10^-11 m

The sensor of light is.

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Transistor

LED

Diode

Light dependent resistance

Identify the practical application of electrostatic force.

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Inkjet printer

x rays

Laser

A.C. Generator

The reactance of inductor depends upon

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L

All of the above

The temperature at which, semiconductor behaves as insulators:

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10k

0k

237k

None of above

If the following particle have the same energy, which particle has the shortest wave length.

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alpha particle

Neutron

Beta particle

Proton

Which one has greater cone of impurity among all:

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Emitter

Base

Collector

All are pure

By increasing the temperature of conductor, the flow rate of charges.

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Increase

Remains constant

Decreases

Changes exponentially

The velocity of an oscillating charge as it moves to and fro along a wire is.

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Changing

Constant

Infinite

zero

Conductors have conductivities of order:

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10³(Ωm)-1

10⁷(Ωm)^-1

10⁷Ωm^-1

10^-6Ω

The types of quacks are.

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2

3

4

6

For rectification we use.

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Transformer

Diode

Choke

Generator

Ampere's law is applicable to:

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Circular path

Rectangular path

To any closed path

Nonwe of these

Special organs called ampullae of lorenzenite are present in.

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Bats

Cats

Dogs

Sharks

In 1905, the special theory of relativity was proposed by

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Einstein

Bohr

Maxwell

De Broglie

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Physics FSC Part 2 Online MCQ's Test MCQs With Answers

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