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	Which of the following is formed by decay of a free neurton.	A. A number of electrons B. Two protons C. A proton and an electron D. An alpha particle
2	Why is a capacitor resistor combination used in oscillators in grid circuit.	A. To generate oscillation B. To bias the grid automatically C. To amplify oscillations D. To sustain the oscillations.
3	The unit Planck's constant is equivalent to that of.	A. Energy B. Force C. Velocity D. Angular momentum
4	A perfect back body	A. Is a perfect absorber of all radiations B. Is a perfect reflector of all radiations C. Is a perfect reflector of visible lights radiations D. Is a brownish object
5	Radioactive decay series can be represents on	A. Smith chart B. Segre chart C. Logarithmic chart D. Carbon paper
6	Which one of the following gates in a a universal gate.	A. OR B. AND C. NOT D. NAND
7	The tunnel effect makes possible	A. Alpha decay B. Gama rays C. Positive Beta decay D. negative Beta dacay
8	The most convenient unit for energy at the atomic level is.	A. Joule B. Watt second C. Newton metre D. Electron volt
9	Why hydrogen atom does not emit x-rays.	A. its size is very small B. It contains only single electron C. In it energy levels are for apart D. In it energy levels are close to each other
10	Mosley's law establishes the x rays fluorescence's of target element with its.	A. Atomic weight B. Atomic number C. Density D. Lattice constant

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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

In a Geiger Marsden experiment why do the great majority of the Alpha particles pass straight through the metal foil.

The ionization energy for hydrogen atom is

The change in wavelength of an X-ray when scattered from an electron is called.

The possible values of principal quantum number are.

The half life of radium -226 is

X-rays spectrum may be

In an electronic transition atom cannot emit

When an object moves with a very high speed the length in the direction of motion.

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.

The result of the alpha particle scattering experiment gave evidence for which of the following.

Matter waves

The wavelength of Lyman series for hydrogen spectrum lies in the.

Which of the following propagates at the same speed as velocity of light.

The charge on a helium nucleus is equal to the charge of.

The loss of mass in a.m.u in a nuclear change can be calculated from energy involved in MeV by

When an electron and a positron are annihilated, then number of protons produced is.

The strength of photo electric current depends upon.

Ebers-Moll model describes the working of a

What will be excitation energy in the third orbit of hydrogen atom.

If an object moves with velocity of light the apparent mass of the object as compared to list original mass is

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

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Set 7

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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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