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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
Push pull amplifiers employ
Question # 2
The half life of a radioactive substance is 6 years What is the time taken by 12 g of this substance to decay completely.
Question # 3
Which of the following properties is not exhibited by X-rays.
Question # 4
One gray is equal to.
Question # 5
Which one of the following gates in a a universal gate.
Question # 6
A transistor consists of.
Question # 7
The SI unit of decay constant is.
Question # 8
In a resistor, when base width decreases with increasing Vbc, this phenomenon is called.
Question # 9
X-ray are
Question # 10
When transistor works as an amplifier, its output is.
Question # 11
Why transistor is preferred to triode valve for use as an amplifier.
Question # 12
In de Brogile model electron orbit must form
Question # 13
The constant lamda is called the.
Question # 14
Atomic reactor is based on
Question # 15
A spectroscope sorts out
Question # 16
The potential due to which an electron is lifted from gerund state to excited state is.
Question # 17
Deuterium is
Question # 18
Which of the following detectors can count fast and operate at low voltage.
Question # 19
A unijunction transistor
Question # 20
What is the basic advantage of class A operation of 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 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
|
| 2 | According to Max. Planck, energy is released or absorbed in discrete packets called. |
A. quanta
B. Meson
C. Energy shells
D. Position
|
| 3 | 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
|
| 4 | The absorption of X-rays in a given material follows. |
A. A parabola path
B. Is straight line
C. An exponential curve
D. A circle
|
| 5 | When Be is bombarded by alpha particles, then we obtain |
A. electron
B. Proton
C. Positron
D. Neutron
|
| 6 | The angle of scattering for which the Compton shift is maximum is. |
A. 0 o
B. 45 o
C. 80 o
D. 180 o
|
| 7 | 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
|
| 8 | The critical mass of a fissionable material is. |
A. 1 kg
B. 10 kg
C. 100 kg
D. 1.,000 kg
|
| 9 | Why hydrogen atom does not emit x-rays. |
A. its size is very small
B. It contains only single electron
C. In it energy levels are for apart
D. In it energy levels are close to each other
|
| 10 | What are isotopes. |
A. Atoms of the same element with different numbers of neutrons.
B. Atoms of the same element with different numbers of protons.
C. Atoms which are radioactive
D. Atoms which have gained or lost an electron
|
Test Questions
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