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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
A spectroscope sorts out
Question # 2
A transistor consists of.
Question # 3
The molecular weight of D2O is
Question # 4
The mass of an helium nucleus is equal to.
Question # 5
The decay to form other nuclides by emitting particles and electromagnetic radiations by unstable nuclides is called.
Question # 6
The most convenient unit for energy at the atomic level is.
Question # 7
In de Brogile model electron orbit must form
Question # 8
The photons emitted in inner shell transition are.
Question # 9
The chain reaction is controlled by a series of rods usually made of.
Question # 10
One radian is equal to.
Question # 11
Lissajou's figures are used in a Cathode Ray Oscilloscope while measuring.
Question # 12
Why is a capacitor resistor combination used in oscillators in grid circuit.
Question # 13
The term used for the emission of electrons when light strikes a surface.
Question # 14
Phenomenon of radioactivity is due to disintegration of.
Question # 15
In a resistor, when base width decreases with increasing Vbc, this phenomenon is called.
Question # 16
Magnetic field does not cause deflection in
Question # 17
The SI unit of equivalent dose is
Question # 18
The half life of a given radioactive isotope is 10 years The original mass of the isotope is 12 g What mass of this isotope remains un decayed after 20 years.
Question # 19
A newly prepared radioactive nuclide has a decay constant Lamda of 10-6 s-1 What is the approximate half life of the nuclide.
Question # 20
According to Max. Planck, energy is released or absorbed in discrete packets called.
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
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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
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
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Set 19
20 Questions
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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 -
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 | 48 days after the receipt the amount of iodine -131 left behind is only. |
A. 0.1325 g
B. 0.2135 g
C. 0.3125 g
D. 0.1235 g
|
| 2 | Which of the following are electromagnetic waves. |
A. Alpha particles
B. Beta particles
C. Gama rays
D. Water waves
|
| 3 | 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
|
| 4 | In heavy elements of the periodic table the number of neutrons than protons are. |
A. Lesser
B. Greater
C. Equal
D. Undetermined
|
| 5 | Which of the following is required for maintaining sustained chain reaction. |
A. Neutrons
B. Protons
C. Electrons
D. Photons
|
| 6 | The transition of inner shell electrons in heavy atoms gives rise to the emission of. |
A. Low energy b-particle
B. High energy b-particle
C. High energy X- rays
D. High energy gama rays
|
| 7 | During transition, atom cannot emit |
A. Visible light
B. Ultraviolet radiation
C. Infrared radiations
D. gama rays
|
| 8 | The total energy of the hydrogen atom is |
A. zero
B. Infinite
C. positive
D. Negative
|
| 9 | The SI unit of decay constant is. |
A. m
B. m-1
C. s-1
D. N m-1
|
| 10 | In a Nuclear reactor which material is often used as modeerator. |
A. Water
B. Graphite
C. Uranium
D. Water and graphite
|
Test Questions