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.

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PPSC Physics Chapter 7 Important MCQ's

Sr.#	Question	Answer
1	A logic circuit with one input and one output that inverts the input signal at the output is.	A. AND gate B. NOT gate C. OR gate D. NOR gate
2	Which of the following can be used as an arrester in a nuclear reactor.	A. Graphite B. heavy water C. Uranium D. Cadmium
3	What do we study by crystallography.	A. The analysis of X ray spectra of elements and study of crystal structure. B. Visible spectra of sources and crystal study C. Ultraviolet spectra of sources and crystal study D. Characteristics of X-rays
4	The radius of second orbit of hydrogen atom is	A. 0.071 A B. 0.142 A C. 4.752 A D. 9.5298 A
5	Which given element has lowest work function	A. Na B. Al C. si D. C
6	The SI unit of decay constant is.	A. m B. m-1 C. s-1 D. N m-1
7	A logic circuit whose output signal is '1' when inputs are different is.	A. NAND gate B. NOR gate C. Exclusive OR gate D. Exclusive NOR gate
8	Which of the following are electromagnetic waves.	A. Alpha particles B. Beta particles C. Gama rays D. Water waves
9	The angular speed of an electron in the nth orbit of Bohr's hydrogen atom is.	A. Directly proportional to n B. Directly proportional to n2 C. Inversely proportional to n D. Inversely proportional to n2
10	Which of the following is not an electromagnetic wave.	A. game rays B. Ultraviolet rays C. Ultrasonic waves D. Microwaves

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PPSC Physics Topic 7 MCQ Test With Answer

MCQ's Test For PPSC Physics Topic 7 Modern Physics

PPSC Physics Topic 7 Modern Physics

Compton scattering experiment seemed to indicate that radiation had

The phenomenon is which the wavelength of scattered X-rays is larger than the incident X-rays is known as.

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

The electrons behave as waves, because they can .

The bunding energy per nucleon for iron is.

Which six particles and their antiparticles interact by the weak interaction.

In Compton's effect it was considered that X-rays consist of

The splitting of atomic energy levels and the associated spectrum lines when the atoms are placed in a magnetic field is called.

The simple form of particle accelerator is.

The phenomenon of Compton's effect process that right has

An example of continuous spectrum is.

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

NOR gate is a combination of.

The exitance of more than one distinct state with the same energy is called.

An oscillator is basically an amplifier with loop gain

Alpha particles are

The half life of a radioactive substance depend on.

The energy in an electromagnetic wave is carried in the units called.

Emitter follower amplifier is an example of.

In a transistor which one is very thin.

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

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Set 4

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Set 9

Set 10

Set 11

Set 12

Set 13

Set 14

Set 15

Set 16

Set 17

Set 18

Set 19

Set 20

Set 21

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PPSC Physics Chapter 7 Important MCQ's

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