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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
From which radiation it is most difficult to protect oneslelf.
Question # 2
The half life of uranium -238 is
Question # 3
The usefulness of X rays is largely due to their
Question # 4
Cobalt -60 is a radioactive element with half life of 5.25 years. What fraction of the original sample will be left after 26 years.
Question # 5
A spectroscope sorts out
Question # 6
If an object moves with velocity of light the apparent mass of the object as compared to list original mass is
Question # 7
Which experiment is a demonstration that matter and energy can display properties of both waves and particles.
Question # 8
What is the energy equivalent to amu in Me V
Question # 9
Which of the following is required for maintaining sustained chain reaction.
Question # 10
The SI unit of decay constant is.
Question # 11
The mass of an helium nucleus is equal to.
Question # 12
Work function is generally expressed in.
Question # 13
The radius of second orbit of hydrogen atom is
Question # 14
The wavelength of X-rays is of the ofder of.
Question # 15
Photocells are used for
Question # 16
Current gain of a CE amplifier is 50, ITS hfe is about
Question # 17
Bohr's atomic model assumes
Question # 18
In a transistor which one is very thin.
Question # 19
The potential due to which an electron is lifted from gerund state to excited state is.
Question # 20
The input exultation for a JFET is
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 | The reciprocal of decay constant lamda of a radioactive substances is equal to. |
A. total life
B. Half life
C. Mean life
D. Curie
|
| 2 | In the experiment of photo electric effect the minimum frequency of photons at which electrons are emitted from a metal surface is called. |
A. Critical frequency
B. Typical frequency
C. Threshold frequency
D. Surface frequency
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| 3 | When Photon incident on a metal produce the emission of electrons the process is called. |
A. Photo electric effect
B. Pair production
C. x-rays production
D. Gama ray production
|
| 4 | Which of the following configuration of BJTs gives both voltage gain and current gain. |
A. common Base
B. Common Emtter
C. Common collector
D. All of the above
|
| 5 | One radian is equal to. |
A. 0.1 Gy
B. 0.01 Gy
C. 0.001 Gy
D. 0.0001 gy
|
| 6 | The Compton effect in X-rays proves that |
A. Electrons have wave property
B. x-rays have wave properly
C. X-rays have particle characteristics
D. Electrons cannot exist
|
| 7 | The band width of an audio amplifier is. |
A. 10 Hz to 10 kHz
B. 20 Hz to 54 Hz
C. 20 Hz to 20 kHz
D. 20 Hz to 60 kHz
|
| 8 | One particle having zero mass and zero charge is. |
A. Positron
B. Electron
C. Neutrino
D. Neutron
|
| 9 | The particles less in mass than protons are |
A. Measons
B. Bosons
C. Baryons
D. Nucleons
|
| 10 | the gain of an amplifier is independent of |
A. The two externally connected resistances
B. What is happening inside the amplifier
C. Internal structure of the amplifier
D. All of the above
|
Test Questions