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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
When using the formula E = h lambda what unit should energy have.
Question # 2
In annitilation of matter, positron and electron pair disappears into two
Question # 3
X-rays are
Question # 4
Which of the following is believed to be carrier o nuclear forces.
Question # 5
NOR gate is a combination of.
Question # 6
In the fusion process, there are
Question # 7
The total number nucleons in a nucleus are called.
Question # 8
From which radiation it is most difficult to protect oneslelf.
Question # 9
The force that bonds protons and neutrons together int he nucleus despite the electrical repulsion of the protons is called.
Question # 10
When transistor works as an amplifier, its output is.
Question # 11
Photocells are used for
Question # 12
A transistor consists of.
Question # 13
The half life of a radioactive substance is 6 years What is the time taken by 12 g of this substance to decay completely.
Question # 14
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 # 15
the wavelength of continuous X-rays is inversely proportional to.
Question # 16
A solid state detector is basically
Question # 17
Which experiment is a demonstration that matter and energy can display properties of both waves and particles.
Question # 18
The Compton effect in X-rays proves that
Question # 19
The nucleus of tritium is called.
Question # 20
Transistor stands 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 | The wavelength of Lyman series for hydrogen spectrum lies in the. |
A. Visible region
B. Ultraviolet region
C. Infrared region
D. Far infrared region
|
| 2 | Tracer techniques make use of. |
A. Neutron scattering
B. Electron beams
C. LASER
D. Radioactive isotopes
|
| 3 | Cs - 137 is a radioisotope used ot determine the thickness of the walls of steel pipes Cs 137 is chosen because it emits |
A. Radiowaves
B. Alpha particles
C. Beta particles
D. gama particles
|
| 4 | An operational amplifier can be used as a |
A. Comparator
B. Night switch
C. Inverting and non inverting amplifier
D. All of the above
|
| 5 | 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
|
| 6 | Transistor stands for |
A. Transfer of resistance
B. Transfer of current
C. Transfer of power
D. Transfer of voltage
|
| 7 | The maximum K.E of photo electrons depends upon |
A. Energy of incident radation
B. Frequency of incident radiation
C. Wavelength of incident radiation
D. Mass of incident radiation
|
| 8 | The molecular weight of D2O is |
A. 16
B. 18
C. 20
D. 24
|
| 9 | A transistor can be used as |
A. Oscillator
B. Amplifier
C. Switch
D. Both a and c
|
| 10 | A slow neutron can cause fission in |
A. Uranium -238
B. Uranium-235
C. Hydrogen-1
D. Thorium -232
|
Test Questions