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 Internal frame is a frame is which
  • A. 1st law holds
  • B. 2nd law holds
  • C. 3rd law holds
  • D. Kelvin's law holds
2 Unit of Stephen's constant is
  • A. W m K<sup>-2</sup>
  • B. W m<sup>-2</sup> K<sup>-4</sup>
  • C. W m K<sup>-4</sup>
  • D. None
3 The unit for Plank's constant is:
  • A. Js<sup>-1</sup>
  • B. Jm
  • C. Js&nbsp;
  • D. Jm<sup>2</sup>
4 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
5 The unit of Plank's constant 'h' is.
  • A. JC
  • B. J/C
  • C. JS
  • D. J/S
6 In Compton effect the photon behaves as a.
  • A. Wave
  • B. Particle
  • C. Nucleon
  • D. Both a and b
7 The concept of direction is purely
  • A. Relative
  • B. Absolute
  • C. Relative to the motion
  • D. None of these
8 The most refined form of matter is:
  • A. Smoke
  • B. Light
  • C. Ice
  • D. Fog
9 The existence of positron was discovered in:
  • A. 1929
  • B. 1928
  • C. 1931
  • D. 1933
10 Energy of Black body radiation depends upon
  • A. Nature of surface of body
  • B. Nature of material of body
  • C. Shape and size of body
  • D. Temperature of the body

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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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