12th class Physics chapter 20 online mcq test with answers for ICS part 2 Physics Chapter 20 (Atomic Spectra)

2nd Year Physics Chapter 20 Online MCQ Test for 12th Class Physics Chapter 20 (Atomic Spectra)

This online test contains MCQs about following topics:

- Atomic Spectra
- Bohr's Model of the Hydrogen Atom
- Inner Shell Transitions and Characteristic X-Rays
- Uncertainty Within the Atom
- Laser

+ View More detail

Ics Part 2 Physics Chapter 20 Test

Start Physics Chapter 20 Test

ICS Part 1 English Medium Subjects

ICS Part 1 Urdu Medium Subjects

2nd Year Physics Chapter 20 Online MCQ Test for 12th Class Physics Chapter 20 (Atomic Spectra)

Sr. #	Questions	Answers Choice
1	1 rad =	A. 0.001Gy B. 0.01Gy C. 0.1Gy D. 1.01Gy
2	The first orbit in the hydrogen atom has a radius.	A. 0.53 nm B. 0.053 nm C. 0.0053 nm D. 0.00053 nm
3	Helium Neon Laser Beam emitted from discharge tube has a colour.	A. Blue B. Green C. Red D. Black
4	The series in visible region is:	A. Balmer series B. Pfund series C. Paschen series D. None of above
5	The 1<sup>st</sup> Bohr atom in the hydrogen atom has radius	A. 3.56 x 10<sup>-10</sup> m B. 0.053 x 10<sup>-11</sup> m C. 0.53 x 10<sup>-11</sup> m D. 5.30 x 10<sup>-11</sup> m
6	When an electron in an atom goes from a lower to higher orbit its:	A. K.E increases , P.E decreases B. K.E increases , P.E increases C. K.E decreases , P.E increases D. K.E decreases , P.E decreases
7	The series in infrared region is:	A. Paschen series B. Bracket series C. Pfund series D. All of above
8	The shortest wave length is Bracket series has wave length.	A. 16/Rn B. Rn/16 C. 16 Rn D. 4 Rn
9	The idea of laser device was first introduced by C.H. Towners and Authers Schowlan is	A. 1972 B. 1965 C. 1958 D. 1913
10	Laser is a device which can produce:	A. Intense beam of light B. Coherant beam of light C. Monochromatic beam of light D. All of the above

Top Scorers of Ics Part 2 Physics Chapter 9 Test Online

Dazzlee

Lahore17 - Jul - 2022

16/17

01 Mins 05 Sec

Shahkhalid

Islamabad04 - Oct - 2022

16/17

02 Mins 42 Sec

Shahkhalid

Islamabad04 - Oct - 2022

16/17

03 Mins 03 Sec

Dazzlee

Lahore17 - Jul - 2022

15/17

01 Mins 22 Sec

Hm

Lahore30 - Jul - 2022

15/17

02 Mins 32 Sec

Sobia Babar

Lahore05 - Sep - 2022

15/17

03 Mins 12 Sec

Dazzlee

Lahore17 - Jul - 2022

14/17

01 Mins 22 Sec

Attiqshah Shah

Lahore21 - Aug - 2022

14/17

02 Mins

Mirza Shahzaib Shahid

Rawalpindi01 - Sep - 2022

14/17

03 Mins 40 Sec

Dazzlee

Lahore17 - Jul - 2022

13/17

01 Mins 39 Sec

Hm

Lahore30 - Jul - 2022

13/17

02 Mins 17 Sec

Hm

Lahore30 - Jul - 2022

13/17

02 Mins 25 Sec

Ayesha Shahid

Lahore12 - Sep - 2022

13/17

02 Mins 41 Sec

Ayesha Shahid

Lahore12 - Sep - 2022

13/17

04 Mins 53 Sec

Dazzlee

Lahore17 - Jul - 2022

12/17

01 Mins 40 Sec

Chapterwise Lists

Chapter Name	Questions	PDF File
Ics Part 2 Physics Chapter 1 Test Online	17 Questions
Physics Fsc Part 2 Chapter 1 Online Test	17 Questions
Ics Part 2 Physics Chapter 2 Test Online	17 Questions
Physics Fsc Part 2 Chapter 2 Online Test	17 Questions
Ics Part 2 Physics Chapter 3 Test Online	17 Questions
Physics Fsc Part 2 Chapter 3 Online Test	17 Questions
Ics Part 2 Physics Chapter 4 Test Online	17 Questions
Physics Fsc Part 2 Chapter 4 Online Test	17 Questions
Ics Part 2 Physics Chapter 5 Test Online	17 Questions
Physics Fsc Part 2 Chapter 5 Online Test	17 Questions
Ics Part 2 Physics Chapter 6 Test Online	17 Questions
Physics Fsc Part 2 Chapter 6 Online Test	17 Questions
Ics Part 2 Physics Chapter 7 Test Online	17 Questions
Physics Fsc Part 2 Chapter 7 Online Test	17 Questions
Ics Part 2 Physics Chapter 8 Test Online	17 Questions
Physics Fsc Part 2 Chapter 8 Online Test	17 Questions
Ics Part 2 Physics Chapter 9 Test Online	17 Questions
Physics Fsc Part 2 Chapter 9 Online Test	17 Questions
Ics Part 2 Physics Chapter 10 Test Online	17 Questions
Physics Fsc Part 2 Chapter 10 Online Test	17 Questions