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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
Choose the one which acts as single inverter.
Question # 2
Which of the following are particle accelerators.
Question # 3
Besides U 235 what else is needed for making as atomic bomb.
Question # 4
Ionization of a hydrogen atom originally in its ground state takes a minimum out of energy equal to.
Question # 5
An operational amplifier have how many input terminals.
Question # 6
Which one among these contacts in a transistor is non rectifying.
Question # 7
48 days after the receipt the amount of iodine -131 left behind is only.
Question # 8
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 # 9
The energy in an electromagnetic wave is carried in the units called.
Question # 10
X-rays are also used for
Question # 11
The two elements with same number of electrons but different mass number are called.
Question # 12
The energy of neutrons obtained during a fission reaction is.
Question # 13
The half life of radium -226 is
Question # 14
A body moves with velocity of 2 x 106 m s-1 its relativistic mass becomes
Question # 15
X-rays used for
Question # 16
When objects placed in a room are exposed to X- rays they appear
Question # 17
The binding energy to pull the deuterium H apart into a proton and a neutron is equal to.
Question # 18
An active component of an electronic circuit consisting of a small block of semiconducting material to which at least three electrical contacts are made is known as.
Question # 19
A deuteron is
Question # 20
The SI unit of radioactivity is.
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 | What will be excitation energy in the third orbit of hydrogen atom. |
A. 0.66 eV
B. 0.85 eV
C. 1.5 eV
D. 5.4 eV
|
| 2 | A slow neutron can cause fission in |
A. Uranium -238
B. Uranium-235
C. Hydrogen-1
D. Thorium -232
|
| 3 | In CE amplifier phased reversal occurs when the output voltage is taken between |
A. Base and collector
B. Base and emitter
C. Collector and emitter
D. None of the terminals
|
| 4 | A perfect back body |
A. Is a perfect absorber of all radiations
B. Is a perfect reflector of all radiations
C. Is a perfect reflector of visible lights radiations
D. Is a brownish object
|
| 5 | In a transistor which one is very thin. |
A. Collector
B. Emitter
C. Base
D. Depletion region
|
| 6 | A CE amplifier with by passed emitter resistor is an example of. |
A. Current series feedback
B. Voltage sires feed back
C. Current shunt feedback
D. Voltage shunt feed back
|
| 7 | Half life and mean lifetime of a radioactive element are. |
A. Equal to each other
B. Inversely proportional to each other
C. Directly proportional to each other
D. Not related to each other
|
| 8 | The reciprocal of decay constant lamda of a radioactive substances is equal to. |
A. total life
B. Half life
C. Mean life
D. Curie
|
| 9 | An increase in frequency above threshold frequency results in. |
A. Increase in photo electric current
B. Increase in K.E. of electrons
C. Decrease in photoelectric current
D. Decreases in K.E. of electrons
|
| 10 | The angle of scattering for which the Compton shift is maximum is. |
A. 0 o
B. 45 o
C. 80 o
D. 180 o
|
Test Questions