Physics FSC Part 2 Chapter 20 Online MCQ's Test With Answers

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Physics FSC Part 2 Chapter 20 Online MCQ's Test

Sr. # Questions Answers Choice
1 1 rad = 0.001Gy 0.01Gy 0.1Gy 1.01Gy
2 Boher proposed his atomic model in: 1910 1911 1912 1913
3  Charge on an atom is: Positive Negative Neutral None of these
4 Electron volt is unit of: Chemical energy Potential energy Nuclear energy heat energy
5 Charge on positron is: Negative  Positive Netural None of these
6 A° is the unit of: Energy Length Nuclear energy Work
7 Energy produced due to fission of uranium atom is: 500MeV 200MeV 700MeV 750MEV
8 The temperature of core of nuclear reactor is: 1100°C 1200°C 1300°C 1400°C
9 The typical nuclei are less than: 10<sup>-16</sup>m 10<sup>-14</sup>m 10<sup>-12</sup>m 10<sup>-10</sup>m
10 The velocity of electron moving is 1st orbit of hydrogen atom is: 2.09 x 10<sup>6</sup> ms<sup>-1&nbsp;</sup> 2.18 x10<sup>6</sup> ms<sup>-1</sup> 2.19 x 10<sup>6</sup> ms<sup>-1</sup> 3.18 x10<sup>6</sup> ms<sup>-1</sup>
11 The radius of hydrogen atom is: 0.53A° 0.053A° 0.53 x 10<sup>-9</sup> 0.053 x10<sup>-9</sup>
12 The series in infrared region is: Paschen series Bracket series Pfund series All of above
13 The series in visible region is: Balmer series Pfund series Paschen series None of above
14 The value of Rydberg constant is: 1.0749x10<sup>7</sup>m<sup>-1</sup> 1.0974 x 10<sup>7</sup> m<sup>-1</sup> 1.974 x10<sup>6</sup>m<sup>-1</sup> 1.0974 x 10<sup>-7</sup> m<sup>-1</sup>
15 The first spectral lines were discovered in 1885, were Paschen series Balmer series&nbsp; Pfund series Bracket series
16 Black Body radiation spectrum is an example of: Atomic spectra Line spectra Continuous spectra None of above
17 The idea of laser device was first introduced by C.H. Towners and Authers Schowlan is 1972 1965 1958 1913
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