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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 gama ray of energy 1900 MeV is absorbed by
Question # 2
The advantage of electron tube over semiconductor is.
Question # 3
When an object moves with a very high speed the length in the direction of motion.
Question # 4
Work function is generally expressed in.
Question # 5
In scattering experiment which force scatters alpha particle.
Question # 6
An increase in frequency above threshold frequency results in.
Question # 7
The continuous x rays spectrum is obtained due to
Question # 8
A logic circuit with one input and one output that inverts the input signal at the output is.
Question # 9
When using the formula E = h lambda what unit should energy have.
Question # 10
According to Max. Planck, energy is released or absorbed in discrete packets called.
Question # 11
Emitter follower amplifier is an example of.
Question # 12
The splitting of atomic energy levels and the associated spectrum lines when the atoms are placed in a magnetic field is called.
Question # 13
The bunding energy per nucleon for iron is.
Question # 14
The binary equivalent of 25 is
Question # 15
On which factor cut off wavelength of X-rays coming from a Coolidge tube depends upon.
Question # 16
The electrons behave as waves, because they can .
Question # 17
The critical mass of a fissionable material is.
Question # 18
The potential due to which an electron is lifted from gerund state to excited state is.
Question # 19
Which of the following is invariant under Galilean transformation.
Question # 20
One radian is equal to.
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 continuous X rays spectrum is due to an effect. |
A. Bremsstrahlung
B. Breaking radiation
C. Holography
D. both a and b
|
| 2 | The tunnel effect makes possible |
A. Alpha decay
B. Gama rays
C. Positive Beta decay
D. negative Beta dacay
|
| 3 | Cobalt -60 is a radioactive element with half life of 5.25 years. What fraction of the original sample will be left after 26 years. |
A. 1/4
B. 1/8
C. 1/16
D. 1/32
|
| 4 | The radius of second orbit of hydrogen atom is |
A. 0.071 A
B. 0.142 A
C. 4.752 A
D. 9.5298 A
|
| 5 | Most widely used types of gas LASER are |
A. Neon
B. Argon ion
C. Helium
D. All of these
|
| 6 | The best shield against Gama rays would be of |
A. Heavy water
B. Aluminium
C. Iron
D. Lead
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| 7 | The decay process in which an unstable nucleus splits into two fragments of comparable mass is known as. |
A. Nuclear fission
B. nuclear fusion
C. Radioactivity
D. Carbon dating
|
| 8 | Which of the following radiations will burn human skin |
A. Infrared
B. Ultraviolet
C. X rays
D. Alpha particles
|
| 9 | Besides U 235 what else is needed for making as atomic bomb. |
A. Electons
B. Protons
C. Neutrons
D. Photons
|
| 10 | If we use two diodes and a centre tapped transformer we eill get |
A. Transistor
B. Amplifier
C. Half wave rectifier
D. Full wave rectifier
|
Test Questions
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