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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
How many terminals does a BJT have.
Question # 2
If an object moves with velocity of light the apparent length of the object moving the direction of motion becomes.
Question # 3
The band width of an audio amplifier is.
Question # 4
A photon is chasing an electron, whose speed is 0.9 c What is their relative speed.
Question # 5
The advantage of electron tube over a transistor is.
Question # 6
A newly prepared radioactive nuclide has a decay constant Lamda of 10-6 s-1 What is the approximate half life of the nuclide.
Question # 7
Ionization of a hydrogen atom originally in its ground state takes a minimum out of energy equal to.
Question # 8
In radiotherapy X-rays are used to.
Question # 9
The ionization energy for hydrogen atom is
Question # 10
Which of the following is basic transistor configuration.
Question # 11
Sub atomic paticles whihc does not experience strong nuclear force are.
Question # 12
When objects placed in a room are exposed to X- rays they appear
Question # 13
White light a tungsten filament lamp is passed through sodium vapor and viewed through a diffraction gritting Which of the following best describes the spectrum which would be seen.
Question # 14
The gama rays have
Question # 15
The scientific theory concerning the coming into existence of universe.
Question # 16
Choose the one which acts as single inverter.
Question # 17
Transistors with various combinations are widely used as switches in.
Question # 18
Marie Curie and Pierre Curie discovered two new radioactive elements which are.
Question # 19
The best shield against Gama rays would be of
Question # 20
Photocells are used for
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 | Induced fission result from the absorption of |
A. electron
B. Proton
C. Nucleon
D. Neutron
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| 2 | Which of the following is formed by decay of a free neurton. |
A. A number of electrons
B. Two protons
C. A proton and an electron
D. An alpha particle
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| 3 | For an electron or position the rest mass energy is equal to. |
A. 0.21 MeV
B. 0.51 MeV
C. 1.51 MeV
D. 1.21 MeV
|
| 4 | The converse of pair production is |
A. Annihilation of matter
B. Materialization
C. Compton effect
D. Photo electric effect
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| 5 | Which of the following has the highest relative biological effectiveness or the quality factor. |
A. X rays and Gama rays
B. Electrons
C. Photons
D. Alpha particles
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| 6 | In a photocell, certain metals emit electrons for |
A. Visible light
B. X-rays
C. Infrared light
D. Ultraviolet light
|
| 7 | Most widely used types of gas LASER are |
A. Neon
B. Argon ion
C. Helium
D. All of these
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| 8 | 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
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| 9 | An oscillator is basically an amplifier with loop gain |
A. Zero
B. Less than unity
C. More than unity
D. Infinity
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| 10 | The half life of a radioactive substance depend on. |
A. Pressure
B. Temperature
C. Amount of substance
D. No external influences
|
Test Questions