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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
Which series lies in the ultraviolet region.
Question # 2
For Paschen series, the value of 'n' starts from
Question # 3
An atom can reside in excited state for
Question # 4
Helium Neon Laser Beam emitted from discharge tube has a colour.
Question # 5
The rest mass x ray photon is
Question # 6
1 rem =
Question # 7
When meta I is heated sufficiently electrons are given off by the metal. This phenomenon is known as.
Question # 8
The 1st Bohr atom in the hydrogen atom has radius
Question # 9
Bremsstrahlung radiation are examples of
Question # 10
The temperature of core of nuclear reactor is:
Question # 11
Laser is a device which can produce:
Question # 12
The first laser was built by
Question # 13
The idea of laser device was first introduced by C.H. Towners and Authers Schowlan is
Question # 14
The velocity of electron moving is 1st orbit of hydrogen atom is:
Question # 15
Balmer series lies in
Question # 16
For an atom of hydrogen atom the radius of the first orbit is given by:
Question # 17
In an electronic transition atom cannot emit.
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 | 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 | In an electronic transition atom cannot emit. |
A. Infrared radiations
B. Visible radiations
C. Ultraviolet radiations
D. Gama radiations
|
| 3 | In according with Bohr's theory the K.E of the electron is equal to: |
A. ke2/2r
B. Ze2/r
C. Ze2/r2
D. Ze2/2r2
|
| 4 | In Helium Neon laser, discharge tube is filled with Neon gas. |
A. 10%
B. 15%
C. 85%
D. 90%
|
| 5 | The line radiations emitted from by hydrogen filled discharge tube can be analyzed into. |
A. Band spectrum
B. Line spectrum
C. Continuous spectrum
D. Absorption spectrum
|
| 6 | The Balmer series is obtained when all the transition of electrons terminate on |
A. 1st orbit
B. 2nd orbit
C. 3rd orbit
D. 4th orbit
|
| 7 | If 13.6 eV energy is required to ionize the hydrogen atom, then the required energy to remove an electron from n=2 is: |
A. 10.2 eV
B. 0 eV
C. 3.4 eV
D. 6.8 eV
|
| 8 | Charge on an atom is: |
A. Positive
B. Negative
C. Neutral
D. None of these
|
| 9 | Photons emitted in inner shell transition are. |
A. Continuous X -rays
B. Discontinuous X rays
C. Characteristic X rays
D. Energetic X rays
|
| 10 | Which of the following series of hydrogen spectrum lies in ultra violet region. |
A. Lyman sereis
B. Paschen series
C. Balmar series
D. Bracket series
|
Test Questions