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	An oscillator is basically an amplifier with loop gain	A. Zero B. Less than unity C. More than unity D. Infinity
2	The maximum energy of emitted photoelectron is measured by	A. the largest potential difference they can traverse B. The current they produce C. The potential difference they produce D. The speed with they emerge
3	The usefulness of X rays is largely due to their	A. Mass B. Density C. Volume D. Penetrating power
4	When transistor works as an amplifier, its output is.	A. More B. Less C. Zero D. Directly proportional to the input
5	The reciprocal of decay constant lamda of a radioactive substances is equal to.	A. total life B. Half life C. Mean life D. Curie
6	LASER beam my be measure very large distance because it is.	A. Inidirectional B. coherent C. Monochromatic D. Not absorbed
7	Neutrino9 is a particle with	A. Charge less property and has no spin B. Charge less property and has spin C. Charge less like electron and has spin D. The same property as neutron
8	The loss of mass in a.m.u in a nuclear change can be calculated from energy involved in MeV by	A. Dividing by 931 B. Multiplying by 931 C. Diving by 391 D. Multiplying by 391
9	Alpha particles are	A. Helium nuclei B. sodium nuclei C. Ioized nuclei D. Hydrogen nuclei
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

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

A unijunction transistor

The number of electrons in U nucleus are.

The mass of an helium nucleus is equal to.

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

Current gain of a CE amplifier is 50, ITS hfe is about

For the normal operation of transistor the emitter base junction is always.

A solid state detector is basically

Which of the following atom pair have the same structure.

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.

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

The input resistance of a JFET is of the order of.

The best shield against Gama rays would be of

Which one of the following quantities is conserved in a nuclear reactor.

When objects placed in a room are exposed to X- rays they appear

Which of the following is formed by decay of a free neurton.

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

When Be is bombarded by alpha particles, then we obtain

Which of the following is its own anti particle.

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

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

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Set 7

Set 8

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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