12th class Physics chapter 19 online mcq test with answers for ICS part 2 Physics Chapter 19 (Dawn of Modern Physics)

2nd Year Physics Chapter 19 Online MCQ Test for 12th Class Physics Chapter 19 (Dawn of Modern Physics)

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

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Ics Part 2 Physics Chapter 19 Test

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ICS Part 1 English Medium Subjects

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2nd Year Physics Chapter 19 Online MCQ Test for 12th Class Physics Chapter 19 (Dawn of Modern Physics)

Sr. #	Questions	Answers Choice
1	The energy of photon is givne by	A. mv2/2 B. hf C. Va e D. mac<sup>1</sup>
2	Pair production can take place only when energy of radiation is equal and greater than 1.02 MeV, thus correct option is.	A. X rays B. Gama rays C. Heat Radiation D. Ultraviolet rays
3	In the equation if f<sub>2</sub> > then	A. B. C. D.
4	The materialization of energy take place in the process of.	A. Photo electric effect B. Compton Effect C. Pair production D. Annihilationof matter
5	The unit for Plank's constant is:	A. Js<sup>-1</sup> B. Jm C. Js  D. Jm<sup>2</sup>
6	The wavelength associated with the protons moving at speed of 40 m/s is.	A. 7.20 nm B. 9.02 C. 15.7 nm D. 17.3 nm
7	Who explained the photo electric effect.	A. Max Plank B. Einstein C. Henry D. Rutherford
8	The numerical value of Compton wavelength is equal to	A. 3.43 x 10<sup>-12</sup> m B. 1.43 x 10<sup>-12</sup>m C. 2.43 x 10<sup>-12</sup>m D. 0.43 x 10<sup>-12</sup>m
9	The quantity/factor h/m<sub>o</sub>c has the dimensions of.	A. Length B. Time C. Mass D. Energy
10	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

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