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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 radius of second orbit of hydrogen atom is
Question # 2
Which of the following is not an electromagnetic wave.
Question # 3
If the base emitter junction is forward biased and base collector junction is reverse biased the BJT is in.
Question # 4
When Photon incident on a metal produce the emission of electrons the process is called.
Question # 5
The force that bonds protons and neutrons together int he nucleus despite the electrical repulsion of the protons is called.
Question # 6
The continuous X rays spectrum is due to an effect.
Question # 7
The usefulness of X rays is largely due to their
Question # 8
In a nuclear reactor chani reaction is controlled by introducing.
Question # 9
The gama rays have
Question # 10
Which of the following has greatest binding energy per nucleon.
Question # 11
The SI unit of radioactivity is.
Question # 12
The division and germier experiment relates to
Question # 13
When a platinum wire is heated of 1600 oC, it becomes
Question # 14
A solid state detector is basically
Question # 15
A device used to determine mass of an isotope quite accurately is known as.
Question # 16
The absorption of X-rays in a given material follows.
Question # 17
Matter waves
Question # 18
Which of the following is required for maintaining sustained chain reaction.
Question # 19
When an electron and a positron are annihilated, then number of protons produced is.
Question # 20
Why transistor is preferred to triode valve for use as an amplifier.
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 most convenient unit for energy at the atomic level is. |
A. Joule
B. Watt second
C. Newton metre
D. Electron volt
|
| 2 | The critical mass of a fissionable material is. |
A. 1 kg
B. 10 kg
C. 100 kg
D. 1.,000 kg
|
| 3 | Base current of a transistor is 1 mA and collector current is 99 mA What is emitter current. |
A. 1 mA
B. 100 mA
C. 98 mA
D. 110 mA
|
| 4 | In n-p-n transistor the current flows in the direction from |
A. Emitter to base
B. emitter to collector
C. Base to emitter
D. Base to collector
|
| 5 | Neutrino9 is a particle with |
A. Charge less property and has no spin
B. Charge less property and has spin
C. Charge less like electron and has spin
D. The same property as neutron
|
| 6 | In a transistor which one is very thin. |
A. Collector
B. Emitter
C. Base
D. Depletion region
|
| 7 | Which temperature is required for the fusion of two nuclides. |
A. 106 K
B. 107 K
C. 10 8 K
D. 10 9 K
|
| 8 | An increase in frequency above threshold frequency results in. |
A. Increase in photo electric current
B. Increase in K.E. of electrons
C. Decrease in photoelectric current
D. Decreases in K.E. of electrons
|
| 9 | The advantage of electron tube over a transistor is. |
A. Its high efficiency
B. Its high gain
C. Low consumption of power
D. Low input impedance
|
| 10 | The molecular weight of D2O is |
A. 16
B. 18
C. 20
D. 24
|
Test Questions