PPSC Physics Chapter 7 online mcq test with answers for chapter 7 (Modern Physics)

MCQ's Test For PPSC Physics Chapter 7 Modern Physics

Try The MCQ's Test For PPSC Physics Chapter 7 Modern Physics

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PPSC Physics Chapter 7 Modern Physics

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Question # 1

Which particle has zero charge and zero rest mass.

Neutron A
Proton B
Electron C
Photon D

Question # 2

Which experiment is a demonstration that matter and energy can display properties of both waves and particles.

young's double slit experiment A
Division germier experiment B
Heisenberg's uncertainty experiment C
Stern Gerlach experiment D

Question # 3

The decay process in which an unstable nucleus splits into two fragments of comparable mass is known as.

Nuclear fission A
nuclear fusion B
Radioactivity C
Carbon dating D

Question # 4

The process of pair production will take place if the energy of photon is greater than

0.21 MeV A
0.51 MeV B
1.51 MeV C
1.21 MeV D

Question # 5

The decay to form other nuclides by emitting particles and electromagnetic radiations by unstable nuclides is called.

Nuclear stability A
Radioactivity B
Carbon dating C
Spontaneously D

Question # 6

In the Geiger Marsden experiment a narrow beam of alpha particles was fired at a thin piece of Gold foil in a vacuum Some of the particles were scattered though large angles The result of the experiment provided evidence for the existence of.

A very small charged nucleus A
electrons orbiting the nucleus B
Neutrons in the nucleus C
Nuclear reaction D

Question # 7

What will be excitation energy in the third orbit of hydrogen atom.

0.66 eV A
0.85 eV B
1.5 eV C
5.4 eV D

Question # 8

In the fusion process, there are

Hydrogen isotopes A
Helium Isotopes B
Carbon isotopes C
Oxygen isotopes D

Question # 9

Beta decay may occur by

Beta minus A
Beta Plus B
Electron capture C
All of these D

Question # 10

Neutrino9 is a particle with

Charge less property and has no spin A
Charge less property and has spin B
Charge less like electron and has spin C
The same property as neutron D

Question # 11

As oscillator is basically an amplifier with loop gain

Zero A
Infinity B
Less than unity C
More than unity D

Question # 12

Which of the following detectors can count fast and operate at low voltage.

G.M Counter A
Cloud chamber B
Solid state detector C
Bubble chamber D

Question # 13

The continuous X rays spectrum is due to an effect.

Bremsstrahlung A
Breaking radiation B
Holography C
both a and b D

Question # 14

The half life of a radioactive element depends upon.

Temperature A
pressure B
nature of element C
quantity of the element D

Question # 15

Which both elements are good for nuclear fission.

Thorium an uranium A
Thorium and radium B
Plutonium and uranium C
Plutonium and throrium D

Question # 16

Which uranium isotope having the atomic weights as given below is easily fissionable.

234 A
235 B
236 C
238 D

Question # 17

A gama ray of energy 1900 MeV is absorbed by

Proton antiproton pair A
Electron positron pair B
Producing heat in the substance C
The orbit D

Question # 18

Which of the following circuits is used as local oscillator in radio receivers.

AF oscillator A
Phase Local Loop B
RF oscillator C
All of the above D

Question # 19

The continuous x rays spectrum is obtained due to

Deceleration of impact electrons A
Breaking potential B
Excitation potential C
Ionization potential D

Question # 20

On which factor cut off wavelength of X-rays coming from a Coolidge tube depends upon.

Target material A
Accelerating voltage B
Filament temperature C
Separation between target and the filament D

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PPSC Physics Chapter 7 MCQ Test With Answer for Physics chapter 7 (Modern Physics)

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MCQ's Test For PPSC Physics Chapter 7 Modern Physics

PPSC Physics Chapter 7 Modern Physics

Which particle has zero charge and zero rest mass.

Which experiment is a demonstration that matter and energy can display properties of both waves and particles.

The decay process in which an unstable nucleus splits into two fragments of comparable mass is known as.

The process of pair production will take place if the energy of photon is greater than

The decay to form other nuclides by emitting particles and electromagnetic radiations by unstable nuclides is called.

In the Geiger Marsden experiment a narrow beam of alpha particles was fired at a thin piece of Gold foil in a vacuum Some of the particles were scattered though large angles The result of the experiment provided evidence for the existence of.

What will be excitation energy in the third orbit of hydrogen atom.

In the fusion process, there are

Beta decay may occur by

Neutrino9 is a particle with

As oscillator is basically an amplifier with loop gain

Which of the following detectors can count fast and operate at low voltage.

The continuous X rays spectrum is due to an effect.

The half life of a radioactive element depends upon.

Which both elements are good for nuclear fission.

Which uranium isotope having the atomic weights as given below is easily fissionable.

A gama ray of energy 1900 MeV is absorbed by

Which of the following circuits is used as local oscillator in radio receivers.

The continuous x rays spectrum is obtained due to

On which factor cut off wavelength of X-rays coming from a Coolidge tube depends upon.

Prepare Complete Set Wise PPSC Physics Chapter 7 Modern Physics MCQs Online With Answers

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Set 5

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Set 7

Set 8

Set 9

Set 10

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Set 13

Set 14

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Set 16

Set 17

Set 18

Set 19

Set 20

Set 21

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