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

00:00
Question # 1

Which particle are not emitted by a radioactive substance.

Question # 2

The Rutherford atom according to classical theory is

Question # 3

The nucleus of tritium is called.

Question # 4

Nuclear force exists between

Question # 5

From which radiation it is most difficult to protect oneslelf.

Question # 6

If we use two diodes and a centre tapped transformer we eill get

Question # 7

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

Question # 8

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

Question # 9

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

Question # 10

At room temperature the potential difference between the two sides of depletion region for silicon is of the order of.

Question # 11

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

Question # 12

In a cloud chamber the Alpha particles leave

Question # 13

An emitter follower has

Question # 14

The continuous X rays spectrum is due to an effect.

Question # 15

During transition, atom cannot emit

Question # 16

In an electronic transition atom cannot emit

Question # 17

Low frequency response of an amplifier is mainly limited by.

Question # 18

A newly prepared radioactive nuclide has a decay constant Lamda of 10-6 s-1 What is the approximate half life of the nuclide.

Question # 19

The mass of proton is equal to.

Question # 20

In a photocell, certain metals emit electrons for

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PPSC Physics Chapter 7 Important MCQ's

Sr.# Question Answer
1 Which of the following is deflected by an electric field.
A. Alpha particles
B. X rays
C. Gama rays
D. Neutrons
2 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
3 When transistor works as an amplifier, its output is.
A. More
B. Less
C. Zero
D. Directly proportional to the input
4 Which of the following phenomenon is explained by the tunnel efffect.
A. Alpha decay
B. Beta decay
C. Gama decay
D. Radioactivity
5 LASER beam my be measure very large distance because it is.
A. Inidirectional
B. coherent
C. Monochromatic
D. Not absorbed
6 Which animal did Erwin Schrodinger contemplate using in his famous thought experiment.
A. mouse
B. Cat
C. Dog
D. Rabbit
7 The neutral atoms of all isotopes of the same element contain the same numbers of.
A. Electrons and protons
B. Electrons and neutrons
C. Neutrons
D. Neutrons and protons
8 X-rays used for
A. Cutting boring and precision welding
B. Retina stitching in eye operations
C. Detecting heavy elements under the earth
D. Deflecting flaws in welding and casting
9 Most widely used types of gas LASER are
A. Neon
B. Argon ion
C. Helium
D. All of these
10 If the base emitter junction is forward biased and base collector junction is reverse biased the BJT is in.
A. cut of mode
B. Amplification mode
C. Saturation mode
D. Inversion mode

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