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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
In order to reduce uncertainty in momentum one must use light of.
Question # 2
Binding energy per nucleon is.
Question # 3
Which of the following configuration of BJTs gives both voltage gain and current gain.
Question # 4
The process of energy generation in sun and stars is.
Question # 5
Transistors with various combinations are widely used as switches in.
Question # 6
When light of particular frequency is allowed to fall upon a metal surface electrons are emitted from a these emitted electrons are called.
Question # 7
If an object moves with velocity of light the apparent length of the object moving the direction of motion becomes.
Question # 8
The half life of uranium -238 is
Question # 9
How many terminals does a BJT have.
Question # 10
Which of the following are particle accelerators.
Question # 11
The critical mass of a fission reaction is.
Question # 12
The value of principal quantum number for an ionized atom is.
Question # 13
Which of the following propagates at the same speed as velocity of light.
Question # 14
What is the basic advantage of class A operation of an amplifier.
Question # 15
The advantage of electron tube over a transistor is.
Question # 16
X-rays are not used in RADARs because
Question # 17
As the mass number increases, the binding energy per nucleon in a nucleus
Question # 18
The SI unit of radioactivity is.
Question # 19
The charge on a helium nucleus is equal to the charge of.
Question # 20
The reciprocal of decay constant lamda of a radioactive substances 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 | How many types of quarks were suggested i 1964 quark theory. |
A. Two
B. Three
C. Four
D. Five
|
| 2 | The reciprocal of decay constant lamda of a radioactive element is. |
A. Half life
B. Mean life
C. Total life
D. Curie
|
| 3 | The minimum amount of energy in an individual electron has to gain to escape from a particular surface is called. |
A. Threshold frequency
B. work function
C. Wave number
D. Kinetic energy
|
| 4 | 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
|
| 5 | When a posirtron is emitted it causes. |
A. Mass number to increase by one
B. mass number to decrease by one
C. Atomic number to decrease by one
D. Atomic number to increase by one
|
| 6 | 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
|
| 7 | The output of two input OR gate is zero only when its. |
A. Either input is one
B. Either input is zero
C. Both inputs are zero
D. Both inputs are one
|
| 8 | 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
|
| 9 | The continuous x rays spectrum is obtained due to |
A. Deceleration of impact electrons
B. Breaking potential
C. Excitation potential
D. Ionization potential
|
| 10 | Ashes from a campfire deep in a cave show carbon -14 activity of only one eighth the activity of fresh wood. How long ago was that campfire made. |
A. 13590 years
B. 15190 years
C. 17190 years
D. 21190 years
|
Test Questions
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