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

Which quantity remains fixed in isobars.

Question # 2

Which of the following quantities is discrete according to Bohr's hypothesis.

Question # 3

Photocells are used for

Question # 4

Cosmic rays mostly comprise of

Question # 5

Bohr's atomic model assumes

Question # 6

The 'x' in X-rays means

Question # 7

An oscillator is basically an amplifier with loop gain

Question # 8

The Compton effect in X-rays proves that

Question # 9

In potential for the material of cathode pure metals are rarely used because of their

Question # 10

Which term given below refers to the concept moving clocks run slower than clocks at rest w.r.t an observer.

Question # 11

The helium nucleus does not contain

Question # 12

Base current of a transistor is 1 mA and collector current is 99 mA What is emitter current.

Question # 13

Which circuit elements has two stable states and can be used to store information.

Question # 14

X-rays are not used in RADARs because

Question # 15

Specially designed solid state detector can be used to detect.

Question # 16

Both xenon and cesium each have

Question # 17

When a platinum wire is heated of 1600 oC, it becomes

Question # 18

X-rays travel with

Question # 19

The usefulness of X rays is largely due to their

Question # 20

NOR gate is a combination of.

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 Which particle are not emitted by a radioactive substance.
A. Alpha particles
B. Beta particles
C. Gama particles
D. Neutrons
2 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
3 Negative feedback
A. Increases stability
B. Decreases stability
C. Produces oscillatory
D. Cannot occur
4 The molecular weight of D2O is
A. 16
B. 18
C. 20
D. 24
5 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
6 What is the quantitative description of the effect of radiation on the living tissue.
A. Radiation dosimetry
B. Radioactive dating
C. Telemetry
D. Dosage
7 The charge on a helium nucleus is equal to the charge of.
A. Two electrons
B. Two protons
C. Two neutrons
D. One proton
8 The critical mass of a fission reaction is.
A. The mass to start a nuclear fission reaction
B. The minimum mass for chain reaction
C. The size of the reactor core
D. The size of fuel plus the size of moderator
9 The total energy of an electron in an orbit around the nucleus is.
A. Zero
B. Unity
C. Infinity
D. Negative
10 The working of cloud chamber is based in the presence of.
A. Super heated vapours
B. Liquid
C. Super saturated vapors
D. Unsaturated vapours

Test Questions

Is this page helpful?

Share your comments & questions here

Guest

  • No comments yet. Be the first to comment!