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19th Chapter

12th Class Physics Chapter 19 Test

Here you can prepare 12th Class Physics Chapter 19 Dawn of Modern Physics Test. Click the button for 100% free full practice test.

Second Year Physics Chapter 19 Online MCQ Test for 2nd Year Physics Chapter 19 Dawn of Modern Physics Preparation

This online test contains MCQs about following topics:.

- Relative Motion - Frames of Reference - Special Theory of Relativity - Black Body Radiation - Interaction of Electromagnetic Radiation With Matter - Annihilation of Matter - Wave Nature of Particles - Uncertainty Principle

FSC Part 2 Physics Ch 19 Test
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Second Year Physics Chapter 19 Online MCQ Test for 2nd Year Physics Chapter 19 Dawn of Modern Physics Preparation

Sr. # Questions Answers Choice
1 The emission of electrons from metal surface when exposed to light is called:
  • A. Compton effect
  • B. Pair production
  • C. Photoelectric effect
  • D. None of above
2 The quantity/factor h/m<sub>o</sub>c has the dimensions of.
  • A. Length
  • B. Time
  • C. Mass
  • D. Energy
3 The concept of direction is purely
  • A. Relative
  • B. Absolute
  • C. Relative to the motion
  • D. None of these
4 Compton's effect is associated with
  • A. gamma rays
  • B. Beta rays
  • C. X rays
  • D. Positive rays
5 The mass of an object will be doubled at speed.
  • A. 2.6 x 10<sup>8</sup> m/s
  • B. 1.6 x 10<sup>8 </sup>m/s
  • C. 2.6 x 10<sup>7 </sup>m/s
  • D. 3.6 x 10<sup>7</sup> m/s
6 Who explained the photo electric effect.
  • A. Max Plank
  • B. Einstein
  • C. Henry
  • D. Rutherford
7 The converses of annihilation of matter is:
  • A. Photoelectric effect
  • B. Relativistic effect
  • C. Pair production
  • D. Compton effect
8 The photoelectric effect predicts that light is made of
  • A. Photons
  • B. Neutrons
  • C. Protons
  • D. None of these
9 An electron miroscope emplys which to one of the following particles?
  • A. Electron ahve a wave nature
  • B. Electrons can be focused by an electric field
  • C. Electrons can be focused by a magnetic field
  • D. All of the above
10 Application of wave like nature of particle is
  • A. Photodiode
  • B. Optical microscope
  • C. Electron microscope
  • D. Compound microscope

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Share your comments questions here
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  • S

    Sajal

    09 Dec 2017

    Helpful

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  • I

    Intikhab

    11 Aug 2017

    10/17

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  • T

    Tayyab

    30 Apr 2016

    good and very helpful for exam preparation

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