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

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PPSC Physics Topic 7 Modern Physics

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Question # 1

Which one of the following has maximum frequency.

Question # 2

The input exultation for a JFET is

Question # 3

The tunnel effect makes possible

Question # 4

The Rutherford atom according to classical theory is

Question # 5

Magnetic field does not cause deflection in

Question # 6

Tracer techniques make use of.

Question # 7

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

Question # 8

The decay to form other nuclides by emitting particles and electromagnetic radiations by unstable nuclides is called.

Question # 9

The process of pair production will take place if the energy of photon is greater than.

Question # 10

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

Question # 11

Emitter follower amplifier is an example of.

Question # 12

The maximum K.E. with which photoelectrons are emitted depends very strongly on the.

Question # 13

Which of the following is the most massive particle.

Question # 14

The energy in electron volts necessary to remove the most loosely bound electron from the neutral atom is known as.

Question # 15

What is the basic advantage of class A operation of an amplifier.

Question # 16

Which of the following is not an electromagnetic wave.

Question # 17

Which both elements are good for nuclear fission.

Question # 18

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

Question # 19

The ionization energy for hydrogen atom is

Question # 20

The emission of electrons from a metal surface when exposed to light of suitable frequency is called.

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PPSC Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 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
2 The emission of photons by a metal when electrons are incident is called.
A. Photo electric effect
B. Pair production
C. X-rays production
D. Gama ray production
3 The Beta particles move along.
A. Straight path
B. Curved path
C. Zig Zag path
D. Circular path
4 Which of the following atom pair have the same structure.
A. N, C
B. B, Li
C. H2 , Ne
D. Li , Na
5 X-rays travel with
A. The speed of light
B. The speed of sound
C. The speed of 3,000 m s-1
D. The speed of 3,500 m s-1
6 The resistance between(+) and (-) inputs of an amplifier is.
A. Zero
B. Low
C. High
D. Infinity
7 The splitting of atomic energy levels and the associated spectrum lines when the atoms are placed in a magnetic field is called.
A. The photoelectric effect
B. The zeeman effect
C. The Compton effect
D. Quantum effect
8 The continuous X rays spectrum is due to an effect.
A. Bremsstrahlung
B. Breaking radiation
C. Holography
D. both a and b
9 Why FET amplifiers are called voltage controlled devices.
A. Input is a current signal
B. Output is a current signal
C. Input is a voltage signal
D. Output is a voltage signal
10 LED is a p-n junction that emits
A. Visible light
B. X- rays
C. Ultraviolet light
D. electromagnetic waves

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