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 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
2	Eintein's Photoelectric equation is E<sub>k</sub>= hf -∅ in this equation E<sub>1</sub>, refers to:	A. K.E of al the emited electrons B. Mean K.E of emited electrons C. Maximum K.E of emited electrons D. Minimum K.E of emited electrons
3	Einstein photoelectric equation is	A. B. C. D. None of these
4	Minimum energy needed to escape an electron  ofrm metal surface is called:	A. Threshold energy B. Threshold frequency C. Work function D. Work ability
5	The dimensions of Plank's constant is same as that of.	A. Energy B. Power C. Acceleration D. Angular momentum
6	Application of wave like nature of particle is	A. Photodiode B. Optical microscope C. Electron microscope D. Compound microscope
7	The position has charge which is in magnitude equal to the charge on	A. Electron B. Proton C. <span style="font-weight: bold; color: rgb(106, 106, 106); font-family: arial, sans-serif; font-size: small;">β particle</span> D. All
8	Who explained the photo electric effect.	A. Max Plank B. Einstein C. Henry D. Rutherford
9	The number of electrons emitted depends upon	A. Colour of target surface B. Shape of surface C. Frequency of incident light D. Intensity of incident light
10	Internal frame is a frame is which	A. 1st law holds B. 2nd law holds C. 3rd law holds D. Kelvin's law holds

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