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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"
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Total Questions17
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Time Allowed20
Physics FSC Part 2 Chapter 20 Online MCQ's Test
00:00
Question # 1
The first orbit in the hydrogen atom has a radius.
Question # 2
First spectral series of hydrogen atom was discovered by
Question # 3
For an atom of hydrogen atom the radius of the first orbit is given by:
Question # 4
Laser is a beam of light which is
Question # 5
Helium-Neon laser discharge tube contains neon
Question # 6
Balmer Empirical formula explains the electromagnetic radiation of any excited atom in terms of their.
Question # 7
We can find from de Broglie formula
Question # 8
The first laser was built by
Question # 9
Electron volt is unit of:
Question # 10
When meta I is heated sufficiently electrons are given off by the metal. This phenomenon is known as.
Question # 11
Charge on positron is:
Question # 12
Bremsstrahlung radiation are examples of
Question # 13
Hydrogen atom spectrum does not lie in
Question # 14
The series in infrared region is:
Question # 15
Earth orbital speed is
Question # 16
The first theory about the structure of an atom was introduced by
Question # 17
A° is the unit of:
FSC Part 2 Physics Chapter 20 Online Test MCQ's
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FSc Part II Physics Chapter 0 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | The temperature of core of nuclear reactor is: |
A. 1100°C
B. 1200°C
C. 1300°C
D. 1400°C
|
| 2 | The series in visible region is: |
A. Balmer series
B. Pfund series
C. Paschen series
D. None of above
|
| 3 | Which is not true for X rays |
A. X rays are not defected by electric field
B. X rays are polarized
C. X rays consist of electromagnetic waves
D. X rays can be diffracted by grating
|
| 4 | The idea of laser device was first introduced by C.H. Towners and Authers Schowlan is |
A. 1972
B. 1965
C. 1958
D. 1913
|
| 5 | A° is the unit of: |
A. Energy
B. Length
C. Nuclear energy
D. Work
|
| 6 | For an atom of hydrogen atom the radius of the first orbit is given by: |
A. H/me2
B. me/4h2
C. h2/4π2 kme2
D. h2 me2
|
| 7 | Which series lies in the ultraviolet region. |
A. Balmer series
B. Bracket series
C. Ptund series
D. Lyman series
|
| 8 | Earth orbital speed is |
A. 10 km/s
B. 20 km/s
C. 30 km/s
D. 40 km/s
|
| 9 | Laser can be made by creating. |
A. Meta stable
B. Population inversion
C. Excited state
D. All of these
|
| 10 | _____ has the largest de Broglie wavelength at same speed. |
A. Proton
B. Alpha particle
C. Carbon atom
D. Electron
|
Test Questions