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

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

Question # 2

Magnetic field does not cause deflection in

Question # 3

The rest mass of a particle is independent of the

Question # 4

The half life of uranium -238 is

Question # 5

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 # 6

When light of particular frequency is allowed to fall upon a metal surface electrons are emitted from a these emitted electrons are called.

Question # 7

There are how many modes of operations of a BJT.

Question # 8

In CE amplifier phased reversal occurs when the output voltage is taken between

Question # 9

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

Question # 10

The scientific theory concerning the coming into existence of universe.

Question # 11

A logic circuit with one input and one output that inverts the input signal at the output is.

Question # 12

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

Question # 13

Which one of the following has maximum frequency.

Question # 14

The term used for the emission of electrons when light strikes a surface.

Question # 15

The electrons behave as wave because.

Question # 16

In the experiment of production of X rays electrons are accelerated towards the anode by

Question # 17

The output of two input OR gate is zero only when its.

Question # 18

According to Max. Planck, energy is released or absorbed in discrete packets called.

Question # 19

The Inner electrons in heavy atoms can be disturbed and dislodged by.

Question # 20

What is the scale for measurement of Banbridge mass spectrograph.

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 The half life of a radioactive substance is 6 years What is the time taken by 12 g of this substance to decay completely.
A. 12 years
B. 24 years
C. 48 years
D. infinity
2 The result of the alpha particle scattering experiment gave evidence for which of the following.
A. Nuclear fusion
B. Radio active decay
C. Existence of isotopes
D. Nuclear atom
3 Isotopes are the atoms of the same elements which contain equal number of.
A. Nucleus
B. Neutrons
C. Protons
D. Electrons
4 When Photon incident on a metal produce the emission of electrons the process is called.
A. Photo electric effect
B. Pair production
C. x-rays production
D. Gama ray production
5 Why FET amplifiers are called voltage controlled devices.
A. Input is a current signal
B. Output is a current signal
C. Input is a voltage signal
D. Output is a voltage signal
6 The force that bonds protons and neutrons together int he nucleus despite the electrical repulsion of the protons is called.
A. Molecular force
B. Nuclear force
C. Atomic force
D. Gravitational force
7 48 days after the receipt the amount of iodine -131 left behind is only.
A. 0.1325 g
B. 0.2135 g
C. 0.3125 g
D. 0.1235 g
8 The angle of scattering for which the Compton shift is maximum is.
A. 0 o
B. 45 o
C. 80 o
D. 180 o
9 Photocells are used for
A. Security systems
B. Counting systems
C. Automatic door system
D. All of the above
10 An operational amplifier can be used as a
A. Comparator
B. Night switch
C. Inverting and non inverting amplifier
D. All of the above

Test Questions

Is this page helpful?