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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 loss of mass in a.m.u in a nuclear change can be calculated from energy involved in MeV by
Question # 2
The output of two input OR gate is zero only when its.
Question # 3
How many terminals does a BJT have.
Question # 4
A darling ion amplifier is characterized by
Question # 5
When an electron and a positron are annihilated, then number of protons produced is.
Question # 6
X-rays used for
Question # 7
When a platinum wire is heated of 1600 oC, it becomes
Question # 8
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 # 9
Which of the following is invariant under Galilean transformation.
Question # 10
When transistor works as an amplifier, its output is.
Question # 11
The input exultation for a JFET is
Question # 12
Which type of amplifier causes minimum drain of power supply.
Question # 13
In a transistor which one is very thin.
Question # 14
Which of the following phenomenon is explained by the tunnel efffect.
Question # 15
As oscillator is basically an amplifier with loop gain
Question # 16
The best shield against Gama rays would be of
Question # 17
The angular speed of an electron in the nth orbit of Bohr's hydrogen atom is.
Question # 18
The most familiar example of radioactive dating is.
Question # 19
In the Geiger Marsden experiment a narrow beam of alpha particles was fired at a thin piece of Gold foil in a vacuum Some of the particles were scattered though large angles The result of the experiment provided evidence for the existence of.
Question # 20
An emitter follower has
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
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Set 4
20 Questions
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Set 5
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Set 6
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Set 7
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Set 8
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Set 9
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Set 10
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Set 11
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Set 12
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Set 13
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Set 14
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Set 15
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Set 16
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Set 17
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Set 18
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Set 19
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Set 20
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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 -
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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 decay to form other nuclides by emitting particles and electromagnetic radiations by unstable nuclides is called. |
A. Nuclear stability
B. Radioactivity
C. Carbon dating
D. Spontaneously
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| 2 | In Compton's effect the change in wavelength of a scattered photon is called. |
A. Angle of emergence
B. Angle of refraction
C. Angle of deviation
D. Compton shift
|
| 3 | 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
|
| 4 | One becquerel is equal to |
A. Decay of orie radioactive atoms per second
B. Decay of 10 radioactive atoms per secnd
C. Decay of 100 radioactive atoms per second
D. Decay of infinity radioactive atoms per second.
|
| 5 | The value of principal quantum number for an ionized atom is. |
A. 13.6 eV
B. 27.2 eV
C. 54.4 eV
D. 100 eV
|
| 6 | The reciprocal of decay constant lamda of a radioactive element is. |
A. Half life
B. Mean life
C. Total life
D. Curie
|
| 7 | A gama ray of energy 1900 MeV is absorbed by |
A. Proton antiproton pair
B. Electron positron pair
C. Producing heat in the substance
D. The orbit
|
| 8 | The 'x' in X-rays means |
A. Xenon
B. Explosion
C. x for unknown
D. X makes the spot
|
| 9 | As the mass number increases, the binding energy per nucleon in a nucleus |
A. Increases
B. Decreases
C. Remain constant
D. Varies in a way that depends upon A
|
| 10 | In order to reduce uncertainty in momentum one must use light of. |
A. Short wavelength
B. Large wavelength
C. Wavelength of intermediate value
D. Wavelength of any value
|
Test Questions