20th Chapter

FSC Part 2 Physics Chapter 20 Online Test MCQ's

Second Year Physics Chapter 20 Online MCQ Test for 2nd Year Physics Chapter 20 Atomic Spectra Preparation

FSC Part 2 Physics
Chapter 20 Test

Start Chapter 20 Test

Second Year Physics Chapter 20 Online MCQ Test for 2nd Year Physics Chapter 20 Atomic Spectra Preparation

Sr. # Questions Answers Choice
1 X- ray diffraction reveals that these are
  • A. Particle type
  • B. Wave type
  • C. Both wave and particle
  • D. None of above
2 1 rem =
  • A. 0.001 SV
  • B. 0.01 SV
  • C. 0.1 SV
  • D. 1.01 SV
3 In Helium Neon laser, discharge tube is filled with Neon gas.
  • A. 10%
  • B. 15%
  • C. 85%
  • D. 90%
4 For Paschen series, the value of 'n' starts from
  • A. 2
  • B. 4
  • C. 6
  • D. 8
5 Energy produced due to fission of uranium atom is:
  • A. 500MeV
  • B. 200MeV
  • C. 700MeV
  • D. 750MEV
6 Balmer series lies in
  • A. Visible region
  • B. Invisible region
  • C. Ultraviolet region
  • D. Infrared region
7 A° is the unit of:
  • A. Energy
  • B. Length
  • C. Nuclear energy
  • D. Work
8 For an atom of hydrogen atom the radius of the first orbit is given by:
  • A. H/me<sup>2</sup>
  • B. me/4h<sup>2</sup>
  • C. h2/4<span style="color: rgb(34, 34, 34); font-family: arial, sans-serif; font-size: 16px;">π<sup>2</sup> kme<sup style="">2</sup></span>
  • D. h<sup>2</sup> me<sup>2</sup>
9 X-rays were discovered by
  • A. Curie
  • B. Henry Becquerel
  • C. Rontgen
  • D. None of these
10 Helium Neon Laser Beam emitted from discharge tube has a colour.
  • A. Blue
  • B. Green
  • C. Red
  • D. Black

Top Scorers of Physics FSC Part 2 Chapter 20 Online MCQ's Test

U

Umar Hassan

Lahore28 - Jun - 2025

17/17
02 Mins 05 Sec
A

Awais Farooq

Lahore20 - Apr - 2025

16/17
50 Sec
A

Awais Farooq

Lahore20 - Apr - 2025

16/17
55 Sec
4

416 Alina Abbas

Lahore29 - Apr - 2025

16/17
01 Mins 36 Sec
M

Muhammad Hazim Abdullah

Lahore27 - Apr - 2025

16/17
01 Mins 39 Sec
H

Hamza Khaleel

Lahore03 - May - 2025

16/17
03 Mins 08 Sec
N

Nazia Farhat

Lahore26 - Apr - 2025

16/17
06 Mins 10 Sec
M

Muhammad Hazim Abdullah

Lahore27 - Apr - 2025

15/17
02 Mins 39 Sec
H

Hamza Khaleel

Lahore03 - May - 2025

15/17
03 Mins 35 Sec
A

Awais Farooq

Lahore20 - Apr - 2025

14/17
42 Sec
A

Awais Farooq

Lahore20 - Apr - 2025

14/17
01 Mins 07 Sec
A

Awais Farooq

Lahore20 - Apr - 2025

14/17
01 Mins 07 Sec
A

Awais Farooq

Lahore20 - Apr - 2025

14/17
01 Mins 08 Sec
U

Umar Hassan

Lahore28 - Jun - 2025

14/17
01 Mins 55 Sec
A

Aqleema Noor

Lahore13 - May - 2025

14/17
01 Mins 57 Sec

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