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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
The back ground radiation in the atmosphere on the average is
Question # 2
When a beta particle travels though a medium it knocks out electrons from the atoms due to.
Question # 3
During transition, atom cannot emit
Question # 4
The division and germier experiment relates to
Question # 5
Radioactivity is the phenomenon associated with the.
Question # 6
A solid state detector is basically
Question # 7
The phenomenon is which the wavelength of scattered X-rays is larger than the incident X-rays is known as.
Question # 8
When a posirtron is emitted it causes.
Question # 9
Which one of the following has the largest wavelength.
Question # 10
In which of the following studies x-rays are not helpful.
Question # 11
Which of the following atom pair have the same structure.
Question # 12
The mass of an alpha particle is.
Question # 13
Which of the following circuits is used as local oscillator in radio receivers.
Question # 14
The advantage of electron tube over semiconductor is.
Question # 15
A transistor consists of.
Question # 16
X-rays are also used for
Question # 17
Which of the following is not a mode of radioactive decay
Question # 18
The SI unit of radioactivity is.
Question # 19
The term used for the emission of electrons when light strikes a surface.
Question # 20
The minimum amount of energy in an individual electron has to gain to escape from a particular surface is called.
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 | In scattering experiment which force scatters alpha particle. |
A. Nuclear force
B. Coulomb's force
C. Gravitational force
D. Centripetal force
|
| 2 | Which animal did Erwin Schrodinger contemplate using in his famous thought experiment. |
A. mouse
B. Cat
C. Dog
D. Rabbit
|
| 3 | In the Geiger Marsden experiment a narrow beam of alpha particles was fired at a thin piece of Gold foil in a vacuum Some of the particles were scattered though large angles The result of the experiment provided evidence for the existence of. |
A. A very small charged nucleus
B. electrons orbiting the nucleus
C. Neutrons in the nucleus
D. Nuclear reaction
|
| 4 | Photocells are used for |
A. Security systems
B. Counting systems
C. Automatic door system
D. All of the above
|
| 5 | Lines of Balmer series are emitted by hydrogen atom when the electron jumps from |
A. The first orbit to any other orbit
B. Higher orbits to second orbit
C. Higher orbits to first orbit
D. The third orbit to higher orbit
|
| 6 | The half life of radium -226 is |
A. 1620 years
B. 45 x 109 years
C. 3.8 days
D. 23.5 minutes
|
| 7 | Mosley's law establishes the X-rays fluorescence of target element with is. |
A. Atomic weight
B. Atomic number
C. Density
D. Lattice constant
|
| 8 | Matter waves |
A. Are electromagnetic in nature
B. Travel with the speed of light
C. Can be diffracted
D. Are longitudinal waves
|
| 9 | The reciprocal of decay constant lamda of a radioactive substances is equal to. |
A. total life
B. Half life
C. Mean life
D. Curie
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| 10 | 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
|
Test Questions