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Prepare Modern Physics and all other important topics with PPSC Physics online test. Modern Physics is a term that is used to describe all the discoveries and observations that made physicists rethink their understanding of Physics in the 19th and 20th centuries. In this day and age, one can't study Physics without having a firm understanding of concepts of Modern Physics. That’s why seekers for PPSC Physics jobs need to understand the subject of Modern Physics. Examiners ask many questions from this topic in the PPSC Physics test.
To make the PPSC exam preparation easier for you, team IlmKiDunya.com has created the PPSC Physics online test portal. On this page, you can attempt the PPSC online test MCQs about Modern Physics. Many students complain that they don’t find information about the PPSC Physics exam preparation. We at IlmKiDunya.com bring PPSC online test to your fingertips so you can prepare quickly for the test.
MCQ's Test For PPSC Physics Topic 7 Modern Physics
Try The MCQ's Test For PPSC Physics Topic 7 Modern Physics
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Total Questions20
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Time Allowed20
PPSC Physics Topic 7 Modern Physics
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Question # 1
A gama ray of energy 1900 MeV is absorbed by
Question # 2
Sub atomic particles which experience strong nuclear force are.
Question # 3
The phenomenon in which a photon of frequency 'f' is scattered by an electron and the scattered photon has frequency f <f is known as.
Question # 4
Which of the following circuits is used as local oscillator in radio receivers.
Question # 5
the wavelength of continuous X-rays is inversely proportional to.
Question # 6
In annitilation of matter, positron and electron pair disappears into two
Question # 7
The particles equal in mass or greater than protons are called.
Question # 8
The working of cloud chamber is based in the presence of.
Question # 9
As the mass number varies, which of the quantities does not change w.r.t nucleus.
Question # 10
The value of principal quantum number for an ionized atom is.
Question # 11
When of the following radiations are not emitted by electron transitions in atoms.
Question # 12
At what speed the mass of a body will be doubled.
Question # 13
Which of the following can be used as an arrester in a nuclear reactor.
Question # 14
Half life of a radioactive elements 10 minutes If the initial cont. rate is 368 counts per minute for what time count rate reaches 32 counts per minute.
Question # 15
Which six particles and their antiparticles interact by the weak interaction.
Question # 16
The phenomenon of radioactivity is associated with
Question # 17
A factory buy 100 g of a radioactive chemical with a half life of 5 years which decays to a stable compound How much of the chemical will still be radioactive 10 years time.
Question # 18
The ionization potential of hydrogen atom is.
Question # 19
Besides U 235 what else is needed for making as atomic bomb.
Question # 20
Sub atomic paticles whihc does not experience strong nuclear force are.
Prepare Complete Set Wise PPSC Physics Topic 7 Modern Physics MCQs Online With Answers
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Set 1
20 Questions
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Set 2
20 Questions
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Set 3
20 Questions
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Set 4
20 Questions
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Set 5
20 Questions
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Set 6
20 Questions
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Set 7
20 Questions
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Set 8
20 Questions
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Set 9
20 Questions
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Set 10
20 Questions
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Set 11
20 Questions
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Set 12
20 Questions
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Set 13
20 Questions
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Set 14
20 Questions
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Set 15
20 Questions
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Set 16
20 Questions
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Set 17
20 Questions
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Set 18
20 Questions
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Set 19
20 Questions
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Set 20
20 Questions
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Set 21
3 Questions
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Top Scorers Of PPSC Physics Topic 7 Modern Physics MCQ`s Test
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Q Queen Fatima 22 - Aug - 2023 00 Min 47 Sec 20/20 -
M mahnoor javaid 25 - Sep - 2022 08 Min 10 Sec 17/20 -
S Sanina Arzoo 07 - Mar - 2023 04 Min 02 Sec 15/20 -
F Fiza Farooq 05 - Dec - 2022 06 Min 10 Sec 15/20 -
S Saira Malik 25 - Oct - 2022 00 Min 02 Sec 14/20 -
A Asma Azam 21 - Jan - 2022 03 Min 57 Sec 14/20 -
M Muhammad Zeshan 20 - Sep - 2024 06 Min 17 Sec 14/20 -
S SHERAZ AHMAD 17 - Oct - 2024 08 Min 57 Sec 14/20 -
W Waqar Ali 19 - Dec - 2023 11 Min 30 Sec 14/20 -
W wa-Qul rabbi Zidni ilma 04 - Dec - 2023 04 Min 59 Sec 13/20 -
N Nida Ashfaq 04 - Oct - 2022 06 Min 48 Sec 13/20 -
M Muhammad Ahsaan 26 - Aug - 2022 10 Min 12 Sec 13/20 -
F fida hussain 27 - Apr - 2023 04 Min 29 Sec 12/20 -
S Shaf Ashrafali 08 - Aug - 2024 04 Min 55 Sec 12/20 -
S shahid habib 31 - Mar - 2024 06 Min 29 Sec 12/20
PPSC Physics Chapter 7 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | Sub atomic particles which experience strong nuclear force are. |
A. Leptons
B. Hadrons
C. Mesons
D. Quarks
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| 2 | The possible values of principal quantum number are. |
A. only zero
B. 0,1,2,...................7
C. 1,2,3........................8
D. 2,3,4,6...............10
|
| 3 | The helium nucleus does not contain |
A. Two electrons
B. Two neutrons
C. Two protons
D. Six nucleons
|
| 4 | What will be excitation energy in the third orbit of hydrogen atom. |
A. 0.66 eV
B. 0.85 eV
C. 1.5 eV
D. 5.4 eV
|
| 5 | In CC configuration voltage gain is. |
A. Less than one
B. More than one
C. One
D. Zero
|
| 6 | The best shield against Gama rays would be of |
A. Heavy water
B. Aluminium
C. Iron
D. Lead
|
| 7 | In radiotherapy X-rays are used to. |
A. Treat cancer
B. Delect bone fracture
C. Cure heart diseasee
D. All of the above
|
| 8 | Radio carbon in the atmosphere is produced by the bombardment of. |
A. Oxygen by high energy neutrons
B. Oxygen by high energy protons
C. Nitrogen by high energy protons
D. Nitrogen by high energy neutrons
|
| 9 | An example of continuous spectrum is. |
A. Black body radiation spectrum
B. Molecular spectra
C. Atomic spectra
D. All of the above
|
| 10 | The binding energy per nucleon for uranium is about. |
A. 7.7 MeV
B. 9.6 MeV
C. 13.6 MeV
D. 21.6 MeV
|
Test Questions