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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
Most widely used types of gas LASER are
Question # 2
An important property of an ideal power supply is.
Question # 3
The most convenient unit for energy at the atomic level is.
Question # 4
According to Max. Planck, energy is released or absorbed in discrete packets called.
Question # 5
In de Brogile model electron orbit must form
Question # 6
The phenomenon in which a photon of frequency 'f' is scattered by an electron and the scattered photon has frequency f <f is known as.
Question # 7
The continuous x rays spectrum is obtained due to
Question # 8
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 # 9
Which of the following is its own anti particle.
Question # 10
In heavy atims the electrons are assumed to be arranged in.
Question # 11
The binding energy per nucleon for uranium is about.
Question # 12
The exitance of more than one distinct state with the same energy is called.
Question # 13
A photon is chasing an electron, whose speed is 0.9 c What is their relative speed.
Question # 14
Which of the following is invariant under Galilean transformation.
Question # 15
Critical mass is the minimum mass needed for
Question # 16
The mass of an alpha particle is.
Question # 17
In potential for the material of cathode pure metals are rarely used because of their
Question # 18
The path of electron in Rutherford atomic model according to classical theory a.
Question # 19
The unit Planck's constant is equivalent to that of.
Question # 20
The part of theory of relativity which deals with accelerated bodies is 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
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 | X-rays are absorbed maximum by |
A. Paper
B. Copper
C. Steel
D. Lead
|
| 2 | The total number nucleons in a nucleus are called. |
A. Mass number
B. Atomic number
C. Neutron number
D. Isotopes
|
| 3 | 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
|
| 4 | Which one among these contacts in a transistor is non rectifying. |
A. Base
B. Emitter
C. Collector
D. None of these
|
| 5 | Which of the following is not an electromagnetic wave. |
A. game rays
B. Ultraviolet rays
C. Ultrasonic waves
D. Microwaves
|
| 6 | The force that bonds protons and neutrons together int he nucleus despite the electrical repulsion of the protons is called. |
A. Molecular force
B. Nuclear force
C. Atomic force
D. Gravitational force
|
| 7 | NOR gate is a combination of. |
A. OR gate and NOT gate
B. OR gate and AND gate
C. OR gate and OR gate
D. NOT gate and AND gate
|
| 8 | The maximum K.E. with which photoelectrons are emitted depends very strongly on the. |
A. Intensity of incident light
B. Electric field near the photocathode
C. Frequency of incident light
D. Polarization of incident light
|
| 9 | How many terminals does a BJT have. |
A. 1
B. 2
C. 3
D. 4
|
| 10 | When a beta particle travels though a medium it knocks out electrons from the atoms due to. |
A. Gravitational force of attraction
B. Electrostatic force of repulsion
C. Nuclear force
D. Electromagnetic induction
|
Test Questions