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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
Life time of metastable states is
Question # 2
If 13.6 eV energy is required to ionize the hydrogen atom, then the required energy to remove an electron from n=2 is:
Question # 3
The velocity of electron moving is 1st orbit of hydrogen atom is:
Question # 4
Frequency of x-rays depends upon.
Question # 5
Helium Neon Laser Beam emitted from discharge tube has a colour.
Question # 6
Energy produced due to fission of uranium atom is:
Question # 7
The first laser was built by
Question # 8
The line radiations emitted from by hydrogen filled discharge tube can be analyzed into.
Question # 9
In Helium Neon laser, discharge tube is filled with Neon gas.
Question # 10
The process by which lesser beam can be used to generate 3-dimensional images of objects is called
Question # 11
First spectral series of hydrogen atom was discovered by
Question # 12
1 rem =
Question # 13
Paschen series lies in the
Question # 14
The idea of laser device was first introduced by C.H. Towners and Authers Schowlan is
Question # 15
For an atom of hydrogen atom the radius of the first orbit is given by:
Question # 16
An atom can reside in excited state for
Question # 17
Reflecting mirrors in laser is used to
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 | In Helium Neon laser, discharge tube is filled with Neon gas. |
A. 10%
B. 15%
C. 85%
D. 90%
|
| 2 | 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
|
| 3 | 1 rad = |
A. 0.001Gy
B. 0.01Gy
C. 0.1Gy
D. 1.01Gy
|
| 4 | 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
|
| 5 | 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
|
| 6 | The 1st Bohr atom in the hydrogen atom has radius |
A. 3.56 x 10-10 m
B. 0.053 x 10-11 m
C. 0.53 x 10-11 m
D. 5.30 x 10-11 m
|
| 7 | Frequency of x-rays depends upon. |
A. Number of electrons striking target
B. Accelerating potencial
C. Nature of the target
D. Both B and C
|
| 8 | Balmer series lies in |
A. Visible region
B. Invisible region
C. Ultraviolet region
D. Infrared region
|
| 9 | 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
|
| 10 | The temperature of core of nuclear reactor is: |
A. 1100°C
B. 1200°C
C. 1300°C
D. 1400°C
|
Test Questions