12th Class FSc Part 2 Physics Chapter Wise Online MCQ Test With Answer PDF

Physics FSC Part 2 Online MCQ's Test

Sr. #	Questions	Answers Choice
1	The SI unit of decay constant is	m m<sup>-1</sup> S<sup>-1</sup> Nm<sup>-1</sup>
2	The radioactive decay obeys the law
3	Radioactivity happen due to the disintegration of	Nucleus Mass Electrons Protons
4	1 amu is equal to	1.0606 x 10<sup>-27</sup> kg 1.66 x 10<sup>-31</sup> kg 1.66 x 10<sup>-34</sup> kg 1.66 x 10<sup>-19</sup> kg
5	The early Greeks believed that matter waves was	Discrete Continuous Both continuous and discrete All of above
6	Charge on an electron was determined by	Ampere Millikan Maxwell Bohr
7	The idea of laser device was first introduced by C.H. Towners and Authers Schowlan is	1972 1965 1958 1913
8	Helium-Neon laser discharge tube contains neon	82% 15% 25% 85%
9	Life time of metastable states is	10<sup>-6</sup> sec or more 10<sup>-3</sup> sec or more 10<sup>-5</sup> sec or more None of these
10	Reflecting mirrors in laser is used to	Further stimulation For producing more energetic lasers Both (a) and (b) None of these
11	The process by which lesser beam can be used to generate 3-dimensional images of objects is called	Holography Geo graphy Tomography Radio graphy
12	An atom can reside in excited state for	10<sup>-8</sup> second One second 10<sup>-10</sup> second More than one second
13	The X-rays diffraction with crystal was first studied by	W.H Bragg W.L. Bragg Michelson None of these
14	X-rays were discovered by	Curie Henry Becquerel Rontgen None of these
15	The 1^st Bohr atom in the hydrogen atom has radius	3.56 x 10<sup>-10</sup> m 0.053 x 10<sup>-11</sup> m 0.53 x 10<sup>-11</sup> m 5.30 x 10<sup>-11</sup> m
16	If the ionization energy of hydrogen atom is 13.6 eV, its ionization potential will be	136.0 volt 3.0 volt 13.6 volt None of these
17	Which of the following is one of the spectral series of atomic hydrogen?	Brockett series Balmer series P fund series All of above

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