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	The relationship between mass number atomic number and neutron number is.	A. A = Z + N B. A = Z - N C. Z = A + N D. N = Z - A
2	The half life of isotopes X is four days and its initial mass is 32 mg What mass of the isotope X will remain after twelve days.	A. 2 mg B. 4 mg C. 8 mg D. 18 mg
3	The constant lamda is called the.	A. Decay constant B. Gas constant C. Planck's constant D. Dose constant
4	What is the overall gain, if three amplifiers each with a gain of 30 are cacaded.	A. 30 B. 90 C. 270 D. 27,000
5	Which of the following is the most commonly used regions of operations for a transistor.	A. Cut off B. Saturation C. Active D. All of these
6	According to Max. Planck, energy is released or absorbed in discrete packets called.	A. quanta B. Meson C. Energy shells D. Position
7	The maximum K.E of photo electrons depends upon	A. Energy of incident radation B. Frequency of incident radiation C. Wavelength of incident radiation D. Mass of incident radiation
8	Which given element has lowest work function	A. Na B. Al C. si D. C
9	Which of the following causes the deflection of Alpha particles when they re passed through a thin foil.	A. Attraction of nucleus B. Collision with nuclei C. Interactions with electrons D. Electrostatic repulsion by the nucleus
10	A darling ion amplifier is characterized by	A. High voltage and current gain B. High input resistance and current gain C. High output resistant and current gain D. Low input resistance and current gain

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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

The process of conversation of a photon into an electron and a position is called.

Most widely used types of gas LASER are

The input exultation for a JFET is

An important property of an ideal power supply is.

The half life of a given radioactive isotope is 10 years The original mass of the isotope is 12 g What mass of this isotope remains un decayed after 20 years.

The minimum amount of energy in an individual electron has to gain to escape from a particular surface is called.

The half life of isotopes X is four days and its initial mass is 32 mg What mass of the isotope X will remain after twelve days.

For an electron or position the rest mass energy is equal to.

One becquerel is equal to

A logic circuit whose output signal is '1' when inputs are different is.

Which of the following are electromagnetic waves.

The angular speed of an electron in the nth orbit of Bohr's hydrogen atom is.

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

In heavy elements of the periodic table the number of neutrons than protons are.

Which of the following is not an electromagnetic wave.

The phenomenon of radioactivity is associated with

In heavy atims the electrons are assumed to be arranged in.

The critical mass of a fissionable material is.

Neither the position nor the momentum of a particle can be predicted with arbitrarily great precision is the statement of.

Which quantity remains fixed in isobars.

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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