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

FSC Part 2 Physics Chapter Wise Test
(English Medium)

MCQ's Test For Chapter 0 "Physics FSC Part 2 Chapter 20 Online MCQ's Test"

Try The MCQ's Test For Chapter 0 "Physics FSC Part 2 Chapter 20 Online MCQ's Test"

  • Total Questions17

  • Time Allowed20

Start Test Download PDF

Physics FSC Part 2 Chapter 20 Online MCQ's Test

00:00
Question # 1

Laser is a device which can produce:

Question # 2

The Balmer series is obtained when all the transition of electrons terminate on

Question # 3

An electron in H -atom is excited from ground state n=4 , How many spectral lines are possible in this case.

Question # 4

The first laser was built by

Question # 5

If the ionization energy of hydrogen atom is 13.6 eV, its ionization potential will be

Question # 6

First spectral series of hydrogen atom was discovered by

Question # 7

Frequency of x-rays depends upon.

Question # 8

Black Body radiation spectrum is an example of:

Question # 9

Laser is a beam of light which is

Question # 10

Reflecting mirrors in laser is used to

Question # 11

The radius of hydrogen atom is:

Question # 12

The rest mass x ray photon is

Question # 13

Life time of metastable states is

Question # 14

The first orbit in the hydrogen atom has a radius.

Question # 15

Boher proposed his atomic model in:

Question # 16

Energy produced due to fission of uranium atom is:

Question # 17

Balmer series lies in region of electromagnetic spectrum.

Submit

Prepare Complete Set Wise Chapter 0 "Physics FSC Part 2 Chapter 20 Online MCQ's Test" MCQs Online With Answers


Topic Test

00:00
Submit
ic-science-white
Physics
20th Chapter

FSC Part 2 Physics Chapter 20 Online Test MCQ's

Top Scorers Of Chapter 0 "Physics FSC Part 2 Chapter 20 Online MCQ's Test" MCQ`s Test

  • M
    Muzammil Abbas 17 - Oct - 2024 00 Min 50 Sec 17/17
  • K
    Kashaf Riaz “Cutie pie” 16 - Oct - 2024 01 Min 16 Sec 17/17
  • R
    Rizwan Baloch 19 - Jul - 2024 02 Min 48 Sec 17/17
  • S
    Sana Ullah 25 - Oct - 2024 04 Min 39 Sec 17/17
  • A
    Ahmed Shaaff 17 - Oct - 2024 01 Min 55 Sec 16/17
  • A
    Ali Hassan 26 - Nov - 2024 06 Min 40 Sec 16/17
  • Z
    Zarrar Durrani 12 - Jul - 2024 21 Min 16 Sec 16/17
  • M
    Mn Creatives 14 - Dec - 2024 02 Min 13 Sec 15/17
  • A
    Amina jutt 01 - Jul - 2024 02 Min 30 Sec 15/17
  • S
    Sufian Rajput 08 - Jan - 2025 02 Min 36 Sec 15/17
  • M
    Manahal Kamila 13 - Nov - 2024 03 Min 08 Sec 15/17
  • A
    ayesha amir 21 - Jan - 2025 02 Min 09 Sec 14/17
  • Z
    Zulqar Nain Hayder 03 - Feb - 2026 02 Min 19 Sec 14/17
  • M
    Manzar Naru 16 - Aug - 2024 03 Min 35 Sec 14/17
  • Y
    Yumna Saeed 02 - Aug - 2024 02 Min 16 Sec 13/17

FSc Part II Physics Chapter 0 Important MCQ's

Sr.# Question Answer
1 _____ has the largest de Broglie wavelength at same speed.
A. Proton
B. Alpha particle
C. Carbon atom
D. Electron
2 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
3 The first laser was built by
A. ArthursSchawalow
B. T.H.Maiman
C. Peter Sorokin
D. C.H.Townes
4 An atom can reside in excited state for
A. 10-8 second
B. One second
C. 10-10 second
D. More than one second
5 Earth orbital speed is
A. 10 km/s
B. 20 km/s
C. 30 km/s
D. 40 km/s
6 Black Body radiation spectrum is an example of:
A. Atomic spectra
B. Line spectra
C. Continuous spectra
D. None of above
7 The value of Rydberg constant is:
A. 1.0749x107m-1
B. 1.0974 x 107 m-1
C. 1.974 x106m-1
D. 1.0974 x 10-7 m-1
8 Bremsstrahlung radiation are examples of
A. Atomic spectra
B. Molecular spectra
C. Continuous spectra
D. Discrete spectra
9 The longest wavelength of Paschen series is.
A. 656 nm
B. 1094 nm
C. 1875 nm
D. 2000 nm
10 The unit of Rh is.
A. ms-1
B. m
C. m2
D. m-1

Test Questions

Is this page helpful?