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ICS Part 2 Physics
Chapter 20 Test
Start Chapter 20 Test
ICS Part 2 Physics Chapter Wise Test
(English Medium)
MCQ's Test For Chapter 0 "Physics ICS Part 2 Chapter 20 Online MCQ's Test"
Try The MCQ's Test For Chapter 0 "Physics ICS Part 2 Chapter 20 Online MCQ's Test"
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Total Questions17
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Time Allowed20
Physics ICS Part 2 Chapter 20 Online MCQ's Test
00:00
Question # 1
A° is the unit of:
Question # 2
Laser can be made by creating.
Question # 3
Laser is a device which can produce:
Question # 4
Balmer Empirical formula explains the electromagnetic radiation of any excited atom in terms of their.
Question # 5
Life time of metastable states is
Question # 6
The process by which lesser beam can be used to generate 3-dimensional images of objects is called
Question # 7
Radius of first orbit of an atom is r1= 0.053 nm, Radius of second orbit r2 will be.
Question # 8
Earth orbital speed is
Question # 9
1 rem =
Question # 10
Photons emitted in inner shell transition are.
Question # 11
The first spectral lines were discovered in 1885, were
Question # 12
Hydrogen atom spectrum does not lie in
Question # 13
The first laser was built by
Question # 14
Study of hydrogen visible spectrum in
Question # 15
The idea of laser device was first introduced by C.H. Towners and Authers Schowlan is
Question # 16
Reflecting mirrors in laser is used to
Question # 17
For Holography we use
ICS 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 | Radius of first orbit of an atom is r1= 0.053 nm, Radius of second orbit r2 will be. |
A. 0.106 nm
B. 0.212 nm
C. 0.053 nm
D. 0.53 x 10-10 nm
|
| 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 | The first theory about the structure of an atom was introduced by |
A. Neil Bohr
B. Einstein
C. Compton
D. Rutherford
|
| 4 | Balmer series lies in region of electromagnetic spectrum. |
A. Infrared
B. Visible
C. Ultraviolet
D. Fra infrared
|
| 5 | The idea of laser device was first introduced by C.H. Towners and Authers Schowlan is |
A. 1972
B. 1965
C. 1958
D. 1913
|
| 6 | Helium-Neon laser discharge tube contains neon |
A. 82%
B. 15%
C. 25%
D. 85%
|
| 7 | 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
|
| 8 | X- ray diffraction reveals that these are |
A. Particle type
B. Wave type
C. Both wave and particle
D. None of above
|
| 9 | In the Bohr's model of the hydrogen atom, the lowest orbit corresponds to: |
A. Infinite energy
B. Maximum energy
C. Minimum energy
D. Zero energy
|
| 10 | Balmer Empirical formula explains the electromagnetic radiation of any excited atom in terms of their. |
A. Energy
B. Mass
C. Wave length
D. Momentum
|
Test Questions