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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
The change in wavelength of an X-ray when scattered from an electron is called.
Question # 2
The radius of first Bohr's orbit for hydrogen atom is.
Question # 3
From which radiation it is most difficult to protect oneslelf.
Question # 4
X-rays travel with
Question # 5
Which of the following quantities is discrete according to Bohr's hypothesis.
Question # 6
When a helium atom loses an electron it becomes.
Question # 7
Which of the following atom pair have the same structure.
Question # 8
Which of the following phenomenon cannot be understood by quantum theory.
Question # 9
One rem is equal to.
Question # 10
When an electron and a positron are annihilated, then number of protons produced is.
Question # 11
The constant lamda is called the.
Question # 12
X-rays are also used for
Question # 13
What is the scale for measurement of Banbridge mass spectrograph.
Question # 14
There are how many types of forces or interactions.
Question # 15
Specially designed solid state detector can be used to detect.
Question # 16
The half life of uranium -238 is
Question # 17
The mass of an helium nucleus is equal to.
Question # 18
Which given element has lowest work function
Question # 19
The particles equal in mass or greater than protons are called.
Question # 20
Which of the following is not a mode of radioactive decay.
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 | Which BJT configurations used for signal inversion. |
A. CE
B. CC
C. CB
D. BE
|
| 2 | The maximum K.E of photo electrons depends upon |
A. Energy of incident radation
B. Frequency of incident radiation
C. Wavelength of incident radiation
D. Mass of incident radiation
|
| 3 | 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
|
| 4 | A spectroscope sorts out |
A. Atoms
B. Molecules
C. Elements
D. Isotopes
|
| 5 | Induced fission result from the absorption of |
A. electron
B. Proton
C. Nucleon
D. Neutron
|
| 6 | In potential for the material of cathode pure metals are rarely used because of their |
A. Low reflecting power
B. High reflecting power
C. Low resolving power
D. High resolving power
|
| 7 | Which particle interact via all fundamental forces. |
A. Leptons
B. Hadrons
C. Muons
D. mesons
|
| 8 | Though the wavelength of X-rays is smaller than that of visible light yet the speed of X-rays in vacuum is. |
A. longer that that of visible light
B. Smaller than that of visible light
C. Same as that of visible light
D. Unpredictable
|
| 9 | The energy that must be added to separate the nucleus is called. |
A. Critical energy
B. Binding energy
C. Gravitational energy
D. Electrostatic energy
|
| 10 | Ashes from a campfire deep in a cave show carbon -14 activity of only one eighth the activity of fresh wood. How long ago was that campfire made. |
A. 13590 years
B. 15190 years
C. 17190 years
D. 21190 years
|
Test Questions
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