Question # 1

Cobalt -60 is the source for

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Alpha rays

Gama rays

Beta rays

Neutron

If the resistance of 500 Ohm have fourth band of silver colour then its upper maximum resistance will be.

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600 Ohm

550 Ohm

450 Ohm

400 Ohm

To get N-Type the Ge is doped with

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Aluminium

Arsenic

Boron

Indium

If a low resistance is connected parallel to a galvanometer then galvanometer is converted.

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Ammeter

Voltammeter

Ohmmeter

Multimeter

Heat generated by a 40 W bulb in one hour is.

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140 J

1440 J

14400 J

144000 J

The fact that electric field exist in space around an electrical charge is

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Electrical property

Gravitational property

Intrinsic property of nature

Extrinsic property of nature

Which type of impurity is to be added to a pure semi conductor crystal to provide holes.

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Monovalent

Trivalent

Tetravalent

Pentavalent

Hydrogen atom spectrum does not lie in

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Ultraviolet region

Visible region

Infrared region

X ray region

The photoelectric effect predicts that light is made of

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Photons

Neutrons

Protons

None of these

A rheostat can be used as variable resistor as well as a-------------

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Potential divider

Current divider

Wheat stone bridge

Power divider

A perfect absorber must also be perfect

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Cavity

Sources of radiation

Radiator

None of these

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 building blocks of protons and neutrons are called.

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Ions

Electrons

Positrons

quarks

If the kinetic energy of a free electron doubles, its de Broglie wavelength changes by the factor.

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√2

1/√2

2

1/2

Which consumes small power.

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Inductor

Resistor

Motor

All of these

If 13.6 eV energy is required to ionize the hydrogen atom, then the required energy to remove an electron from n=2 is:

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10.2 eV

0 eV

3.4 eV

6.8 eV

Max planck received noble prize in:

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1927

1932

1918

1914

The background radiation to which we are exposed, on the average is.

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1 mSv per year

2 mSv per year

3 mSv per year

4 mSv per year

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Ics Part 2 Physics Test Online MCQs With Answers

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