PPSC Physics Topic 7 MCQ Test With Answer

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

  • Total Questions20

  • Time Allowed20

Start Test Download PDF

PPSC Physics Topic 7 Modern Physics

00:00
Question # 1

Radius of the Bother's orbit is r the radius of second orbit will be.

Question # 2

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.

Question # 3

Which given quantity remains the same in isotones.

Question # 4

Why is a capacitor resistor combination used in oscillators in grid circuit.

Question # 5

In de Brogile model electron orbit must form

Question # 6

A logic circuit whose output signal is '1' when inputs are different is.

Question # 7

In the experiment of photo electric effect the minimum frequency of photons at which electrons are emitted from a metal surface is called.

Question # 8

In which reaction two or more small light nuclei nuclei come together or fuse to form a large nucleus.

Question # 9

One radian is equal to.

Question # 10

The advantage of electron tube over a transistor is.

Question # 11

The division and germier experiment relates to

Question # 12

What is the overall gain, if three amplifiers each with a gain of 30 are cacaded.

Question # 13

Isotopes are the atoms of the same elements which contain equal number of.

Question # 14

Nuclear force exists between

Question # 15

An emitter follower has

Question # 16

The SI unit of current gain is.

Question # 17

A transistor consists of.

Question # 18

The SI unit of absorbed dose in.

Question # 19

Which of the following causes the deflection of Alpha particles when they re passed through a thin foil.

Question # 20

In a transistor which one is very thin.

Submit

Prepare Complete Set Wise PPSC Physics Topic 7 Modern Physics MCQs Online With Answers


Topic Test

00:00
Submit

Top Scorers Of PPSC Physics Topic 7 Modern Physics MCQ`s Test

  • 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 Mosley's law establishes the X-rays fluorescence of target element with is.
A. Atomic weight
B. Atomic number
C. Density
D. Lattice constant
2 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
3 One gray is equal to.
A. 1 J-1 kg -1
B. 1 J -1 kg -2
C. 1 J 1 -g-1
D. 1 j kg -2
4 The band width of an audio amplifier is.
A. 10 Hz to 10 kHz
B. 20 Hz to 54 Hz
C. 20 Hz to 20 kHz
D. 20 Hz to 60 kHz
5 A transistor consists of.
A. One p-n junction
B. Two p-n junctions
C. Three p-n junctions
D. Four p-n junction
6 Which of the following phenomenon is explained by the tunnel efffect.
A. Alpha decay
B. Beta decay
C. Gama decay
D. Radioactivity
7 On which factor cut off wavelength of X-rays coming from a Coolidge tube depends upon.
A. Target material
B. Accelerating voltage
C. Filament temperature
D. Separation between target and the filament
8 If the base emitter junction is forward biased and base collector junction is reverse biased the BJT is in.
A. cut of mode
B. Amplification mode
C. Saturation mode
D. Inversion mode
9 Sub atomic particles which experience strong nuclear force are.
A. Leptons
B. Hadrons
C. Mesons
D. Quarks
10 In the experiment of photo electric effect the minimum frequency of photons at which electrons are emitted from a metal surface is called.
A. Critical frequency
B. Typical frequency
C. Threshold frequency
D. Surface frequency

Test Questions

Is this page helpful?