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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
In according with Bohr's theory the K.E of the electron is equal to:
Question # 2
The temperature of core of nuclear reactor is:
Question # 3
When meta I is heated sufficiently electrons are given off by the metal. This phenomenon is known as.
Question # 4
The X-rays diffraction with crystal was first studied by
Question # 5
Frequency of x-rays depends upon.
Question # 6
The longest wavelength of Paschen series is.
Question # 7
The line radiations emitted from by hydrogen filled discharge tube can be analyzed into.
Question # 8
Which series lies in the ultraviolet region.
Question # 9
The idea of laser device was first introduced by C.H. Towners and Authers Schowlan is
Question # 10
For an atom of hydrogen atom the radius of the first orbit is given by:
Question # 11
Photons emitted in inner shell transition are.
Question # 12
Target material used in x-rays tube have following properties.
Question # 13
An atom can reside in excited state for
Question # 14
Black Body radiation spectrum is an example of:
Question # 15
Radius of first Bohr's orbit is.
Question # 16
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 # 17
The series in infrared region is:
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 | X-rays were discovered by |
A. Curie
B. Henry Becquerel
C. Rontgen
D. None of these
|
| 2 | In Helium Neon laser, discharge tube is filled with Neon gas. |
A. 10%
B. 15%
C. 85%
D. 90%
|
| 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 | 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
|
| 5 | The velocity of electron moving is 1st orbit of hydrogen atom is: |
A. 2.09 x 106 ms-1
B. 2.18 x106 ms-1
C. 2.19 x 106 ms-1
D. 3.18 x106 ms-1
|
| 6 | The first theory about the structure of an atom was introduced by |
A. Neil Bohr
B. Einstein
C. Compton
D. Rutherford
|
| 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 | Kx -Xrays are produced due to transition of electron from. |
A. K to L shell
B. L to K shell
C. M to K shell
D. M to L shell
|
| 9 | In Helium Neon laser, the discharge tube is filled with |
A. 80% He, 20% Neon
B. 85% He, 15% Neon
C. 83% He, 17% Neon
D. 90% He, 10% Neon
|
| 10 | 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
|
Test Questions
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