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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
Induced fission result from the absorption of
Question # 2
X-rays are good for imagining
Question # 3
The converse of pair production is
Question # 4
An oscillator is basically an amplifier with loop gain
Question # 5
The most familiar example of radioactive dating is.
Question # 6
From which radiation it is most difficult to protect oneslelf.
Question # 7
The working of cloud chamber is based in the presence of.
Question # 8
What will be excitation energy in the third orbit of hydrogen atom.
Question # 9
The Rutherford atom according to classical theory is
Question # 10
A unijunction transistor
Question # 11
What is the overall gain, if three amplifiers each with a gain of 30 are cacaded.
Question # 12
When a posirtron is emitted it causes.
Question # 13
the wavelength of continuous X-rays is inversely proportional to.
Question # 14
Which type of radiation would be stopped completely by a thin piece of cardboard.
Question # 15
How many terminals does a BJT have.
Question # 16
X-rays are absorbed maximum by
Question # 17
The reciprocal of decay constant lamda of a radioactive substances is equal to.
Question # 18
How many types of quarks were suggested i 1964 quark theory.
Question # 19
A gama ray of energy 1900 MeV is absorbed by
Question # 20
Radius of the Bother's orbit is r the radius of second orbit will be.
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
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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
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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 | Half life and mean lifetime of a radioactive element are. |
A. Equal to each other
B. Inversely proportional to each other
C. Directly proportional to each other
D. Not related to each other
|
| 2 | Which experiment is a demonstration that matter and energy can display properties of both waves and particles. |
A. young's double slit experiment
B. Division germier experiment
C. Heisenberg's uncertainty experiment
D. Stern Gerlach experiment
|
| 3 | Negative feedback |
A. Increases stability
B. Decreases stability
C. Produces oscillatory
D. Cannot occur
|
| 4 | A solid state detector is basically |
A. A reverse biased p-n junction
B. A forward biased p-n junction
C. A p-n -p transistor
D. A n-p-n transistor
|
| 5 | The usefulness of X rays is largely due to their |
A. Mass
B. Density
C. Volume
D. Penetrating power
|
| 6 | The SI unit of decay constant is. |
A. m
B. m-1
C. s-1
D. N m-1
|
| 7 | Which one among these contacts in a transistor is non rectifying. |
A. Base
B. Emitter
C. Collector
D. None of these
|
| 8 | As the mass number varies, which of the quantities does not change w.r.t nucleus. |
A. Mass
B. Volume
C. Binding energy
D. Density
|
| 9 | 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
|
| 10 | The best shield against Gama rays would be of |
A. Heavy water
B. Aluminium
C. Iron
D. Lead
|
Test Questions