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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
Photons emitted in inner shell transition are.
Question # 2
We can find from de Broglie formula
Question # 3
The series in infrared region is:
Question # 4
X- ray diffraction reveals that these are
Question # 5
In Helium Neon laser, discharge tube is filled with Neon gas.
Question # 6
Balmer Empirical formula explains the electromagnetic radiation of any excited atom in terms of their.
Question # 7
An atom can reside in excited state for
Question # 8
Earth orbital speed is
Question # 9
Which is not characteristic of Laser.
Question # 10
In an electronic transition atom cannot emit.
Question # 11
Which of the following is one of the spectral series of atomic hydrogen?
Question # 12
When an electron in an atom goes from a lower to higher orbit its:
Question # 13
Charge on an atom is:
Question # 14
A° is the unit of:
Question # 15
Target material used in x-rays tube have following properties.
Question # 16
The energy of 4th Orbit in hydrogen atom is.
Question # 17
The first laser was built by
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 | The energy of 4th Orbit in hydrogen atom is. |
A. -2.51 eV
B. -3.50 eV
C. -13.60 eV
D. -0.85 eV
|
| 2 | When meta I is heated sufficiently electrons are given off by the metal. This phenomenon is known as. |
A. Photoelectric effect
B. Piezo electric effect
C. Thermionic emission
D. Secondary emission
|
| 3 | The first theory about the structure of an atom was introduced by |
A. Neil Bohr
B. Einstein
C. Compton
D. Rutherford
|
| 4 | Radius of first Bohr's orbit is. |
A. 0.053 nm
B. 0.053 mm
C. 0.053 micro meter
D. 0.053 m
|
| 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 shortest wave length is Bracket series has wave length. |
A. 16/Rn
B. Rn/16
C. 16 Rn
D. 4 Rn
|
| 7 | Helium-Neon laser discharge tube contains neon |
A. 82%
B. 15%
C. 25%
D. 85%
|
| 8 | 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
|
| 9 | 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
|
| 10 | Which of the following is one of the spectral series of atomic hydrogen? |
A. Brockett series
B. Balmer series
C. P fund series
D. All of above
|
Test Questions
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