×
20th Chapter

12th Class Physics Chapter 20 Test

Here you can prepare 12th Class Physics Chapter 20 Atomic Spectra Test. Click the button for 100% free full practice test.

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

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

FSC Part 2 Physics Ch 20 Test
ic

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

Sr. # Questions Answers Choice
1 In Helium Neon laser, discharge tube is filled with Neon gas.
  • A. 10%
  • B. 15%
  • C. 85%
  • D. 90%
2 The unit of Rh is.
  • A. ms-1
  • B. m
  • C. m<sup>2</sup>
  • D. m<sup>-1</sup>
3 The process by which lesser beam can be used to generate 3-dimensional images of objects is called
  • A. Holography
  • B. Geo graphy
  • C. Tomography
  • D. Radio graphy
4 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>
5 First spectral series of hydrogen atom was discovered by
  • A. Lyman
  • B. Rydberg
  • C. Balmer
  • D. Paschen
6 The series in infrared region is:
  • A. Paschen series
  • B. Bracket series
  • C. Pfund series
  • D. All of above
7 If the ionization energy of hydrogen atom is 13.6 eV, its ionization potential will be
  • A. 136.0 volt
  • B. 3.0 volt
  • C. 13.6 volt
  • D. None of these
8 Boher proposed his atomic model in:
  • A. 1910
  • B. 1911
  • C. 1912
  • D. 1913
9 X- ray diffraction reveals that these are
  • A. Particle type
  • B. Wave type
  • C. Both wave and particle
  • D. None of above
10 Electron volt is unit of:
  • A. Chemical energy
  • B. Potential energy
  • C. Nuclear energy
  • D. heat energy

Top Scorers of Physics Fsc Part 2 Chapter 9 Online Test

H

Hamza Abid

Abbottabad20 - Jul - 2022

17/17
10 Mins 50 Sec
E

Eraj Hassan

Lahore04 - Aug - 2022

16/17
40 Sec
R

Rimsha Sohail

Lahore14 - Jul - 2022

16/17
01 Mins 49 Sec
H

Hafeeza Hafeeza

Lahore12 - Aug - 2022

16/17
05 Mins 27 Sec
E

Eraj Hassan

Lahore04 - Aug - 2022

15/17
01 Mins 56 Sec
E

Eraj Hassan

Lahore04 - Aug - 2022

15/17
02 Mins 03 Sec
S

Sarwan Kumar

Lahore13 - Aug - 2022

14/17
21 Sec
S

Sarwan Kumar

Lahore13 - Aug - 2022

14/17
45 Sec
S

Sarwan Kumar

Lahore13 - Aug - 2022

14/17
01 Mins 31 Sec
E

Eraj Hassan

Lahore04 - Aug - 2022

14/17
07 Mins 01 Sec
S

Sarwan Kumar

Lahore13 - Aug - 2022

13/17
02 Mins 40 Sec
E

Eraj Hassan

Lahore04 - Aug - 2022

12/17
03 Mins 05 Sec

Im Anorak

Lahore01 - Aug - 2022

11/17
02 Mins 13 Sec
S

Sarwan Kumar

Lahore13 - Aug - 2022

11/17
02 Mins 14 Sec
M

Muhammad Ahsaan

Kasur26 - Aug - 2022

11/17
05 Mins 26 Sec

Share your comments questions here
Sort By:
X

Sign in

to continue to ilmkidunya.com

inquiry-image

Free Admission Advice

Fill the form. Our admission consultants will call you with admission options.

X

Sign in

to continue to ilmkidunya.com

X

Sign in

to continue to ilmkidunya.com

X

Forgot Password

to continue to ilmkidunya.com

X

Register Type

Please Provide following information to Register

  • Student
  • Tutor
  • Consultant
  • Employer