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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
For an electron or position the rest mass energy is equal to.
Question # 2
X-rays spectrum may be
Question # 3
The constant lamda is called the.
Question # 4
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 # 5
Mean life of a radioactive sample is 100 s its half life will be
Question # 6
In potential for the material of cathode pure metals are rarely used because of their
Question # 7
An oscillator is basically an amplifier with loop gain
Question # 8
Choose the one which acts as single inverter.
Question # 9
The binding energy per nucleon for uranium is about.
Question # 10
The rest mass of a particle is independent of the
Question # 11
The reciprocal of decay constant lamda of a radioactive substances is equal to.
Question # 12
In n-p-n transistor the current flows in the direction from
Question # 13
A slow neutron can cause fission in
Question # 14
Which of the following propagates at the same speed as velocity of light.
Question # 15
Compton scattering experiment seemed to indicate that radiation had
Question # 16
Which of the following is deflected by an electric field.
Question # 17
The capture of neutron by a proton results in the formation of.
Question # 18
The binary equivalent of 25 is
Question # 19
In which of the following controlled nuclear chain reaction is used to liberate energy.
Question # 20
A body moves with velocity of 2 x 106 m s-1 its relativistic mass becomes
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
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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
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Set 14
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Set 15
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Set 16
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Set 17
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Set 18
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Set 19
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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 | The loss of mass in a.m.u in a nuclear change can be calculated from energy involved in MeV by |
A. Dividing by 931
B. Multiplying by 931
C. Diving by 391
D. Multiplying by 391
|
| 2 | Which temperature is required for the fusion of two nuclides. |
A. 106 K
B. 107 K
C. 10 8 K
D. 10 9 K
|
| 3 | What is the basic advantage of class A operation of an amplifier. |
A. It has high efficiency
B. It has high gain
C. It has low distortion
D. It has high distortion
|
| 4 | As the mass number varies, which of the quantities does not change w.r.t nucleus. |
A. Mass
B. Volume
C. Binding energy
D. Density
|
| 5 | Which one of the following spectra series is in the ultraviolet region. |
A. Lyman series
B. Paschen series
C. Brackett series
D. Plund series
|
| 6 | A solid state detector is basically |
A. A reverse biased p-n junction
B. A forward biased p-n junction
C. A p-n -p transistor
D. A n-p-n transistor
|
| 7 | The tunnel effect makes possible |
A. Alpha decay
B. Gama rays
C. Positive Beta decay
D. negative Beta dacay
|
| 8 | Particle which can be added to the nucleus of an atom with changing its chemical properties are called. |
A. Electrons
B. Protons
C. Neutrons
D. Alpha particles
|
| 9 | As oscillator is basically an amplifier with loop gain |
A. Zero
B. Infinity
C. Less than unity
D. More than unity
|
| 10 | The back ground radiation in the atmosphere on the average is |
A. 0.5 Sv per year
B. 1.0 Sv per year
C. 1.5 Sv per year
D. 2.0 Sv per year
|
Test Questions