Question # 1

Which of the following is typical source of alpha particle.

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Strontium -94

Radon -222

Cobalt -60

Zic sulphate

Rectification is the process of converting.

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D.C. into A.C.

A.C. in to D.C.

Low signal to high

High signal to low

The device which allows only the flow of D.C. is.

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Capacitors

transformer

Inductor

Generator

The permeability of free space is measured in

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wb A/m

Am/wb

wb/Am

m/wbA

The resonance frequency is given by:

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fr = 2π√LC

fr = 1/2πLC

fr = 1/ 2π√LC

f1 = 1/ 2πC√L

When a pot difference of 4 volt is applied across resistance, 10 J of energy is converted Find charge flows

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0.20 C

2.5 C

5.0 C

10.0 C

If the length of solenoid is doubled but N same, B inside the solenoid becomes.

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Half

Doubled

One fourth

Four times

The particles which do not experience strong force are called.

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Baryons

Hadrons

Mesons

Laptons

Power dissipated in a pure inductor is.

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Large

Small

Infinite

Zero

An electron miroscope emplys which to one of the following particles?

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Electron ahve a wave nature

Electrons can be focused by an electric field

Electrons can be focused by a magnetic field

All of the above

The first orbit in the hydrogen atom has a radius.

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0.53 nm

0.053 nm

0.0053 nm

0.00053 nm

unit of Plank's constant is same as that of.

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Acceleration

Angular momentum

Linear momentum

Entropy

Which one of the following bulbs has the least resistance.

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100 W

200 W

500 W

1000 W

Photo electrons are emitted y using visible light when the metal is.

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sodium

Copper

Nicked

Cobalt

If the potential difference across two plates of capacitor is doubled, then energy stored in it will be.

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Two times

Eight times

Four times

Remain same

Curie is unit of.

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Conductivity

Binding energy

Radioactivity

Resistivity

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None of the above

Charge on positron is:

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Negative

Positive

Netural

None of these

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Ics Part 2 Physics Test Online MCQs With Answers

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