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

PPSC Physics Topic 7 Modern Physics

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Question # 1

Which Isotopes is use din radioactive dating.

Question # 2

The nucleus of tritium is called.

Question # 3

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

Question # 4

The division and germier experiment relates to

Question # 5

What is the effect of electric and magnetic fields on X-rays

Question # 6

Which of the following phenomenon is observed in obtaining an X ray photograph of our hand.

Question # 7

In which reaction two or more small light nuclei nuclei come together or fuse to form a large nucleus.

Question # 8

In scattering experiment which force scatters alpha particle.

Question # 9

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

Question # 10

48 days after the receipt the amount of iodine -131 left behind is only.

Question # 11

The path of Gama rays in Wilson cloud chamber is

Question # 12

The energy that must be added to separate the nucleus is called.

Question # 13

Why FET amplifiers are called voltage controlled devices.

Question # 14

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

Question # 15

The total energy of the hydrogen atom is

Question # 16

In a cloud chamber the Alpha particles leave

Question # 17

In annitilation of matter, positron and electron pair disappears into two

Question # 18

Which of the following radiations will burn human skin

Question # 19

Which uranium isotope having the atomic weights as given below is easily fissionable.

Question # 20

Compton scattering experiment seemed to indicate that radiation had

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PPSC Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 The wavelength of X-rays is of the ofder of.
A. 10-14 m
B. 10-10 m
C. 10-9 m
D. 10-6 m
2 The potential due to which an electron is lifted from gerund state to excited state is.
A. Potential gradient
B. excitation potential
C. Ionization potential
D. Potential difference
3 The energy in an electromagnetic wave is carried in the units called.
A. Protons
B. Electrons
C. Neutrons
D. Nucleus
4 The reciprocal of decay constant lamda of a radioactive element is.
A. Half life
B. Mean life
C. Total life
D. Curie
5 Push pull amplifiers employ
A. One transistor
B. Two transistors
C. Three transistors
D. Four transistors
6 Special theory of relativity deals with the events in the frames of reference which move with constant.
A. Time interval
B. Acceleration
C. Momentum
D. space interval
7 The number of electrons in U nucleus are.
A. 92
B. 235
C. zero
D. 143
8 A CE amplifier with by passed emitter resistor is an example of.
A. Current series feedback
B. Voltage sires feed back
C. Current shunt feedback
D. Voltage shunt feed back
9 Radio carbon in the atmosphere is produced by the bombardment of.
A. Oxygen by high energy neutrons
B. Oxygen by high energy protons
C. Nitrogen by high energy protons
D. Nitrogen by high energy neutrons
10 If an object moves with velocity of light the apparent mass of the object as compared to list original mass is
A. greater
B. Smaller
C. Same
D. zero

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