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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
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Question # 1
The radius of 10th orbit in hydrogen atom is.
Question # 2
X- ray diffraction reveals that these are
Question # 3
1 rem =
Question # 4
Kx -Xrays are produced due to transition of electron from.
Question # 5
Which is not characteristic of Laser.
Question # 6
In Helium Neon laser, the discharge tube is filled with
Question # 7
Life time of metastable states is
Question # 8
The longest wavelength of Paschen series is.
Question # 9
First spectral series of hydrogen atom was discovered by
Question # 10
The idea of laser device was first introduced by C.H. Towners and Authers Schowlan is
Question # 11
The first theory about the structure of an atom was introduced by
Question # 12
Production of x rays is reverse process of
Question # 13
The Balmer series is obtained when all the transition of electrons terminate on
Question # 14
An electron in H -atom is excited from ground state n=4 , How many spectral lines are possible in this case.
Question # 15
The temperature of core of nuclear reactor is:
Question # 16
A° is the unit of:
Question # 17
If the ionization energy of hydrogen atom is 13.6 eV, its ionization potential will be
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 | 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
|
| 2 | 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
|
| 3 | X-rays were discovered by |
A. Curie
B. Henry Becquerel
C. Rontgen
D. None of these
|
| 4 | The longest wavelength of Paschen series is. |
A. 656 nm
B. 1094 nm
C. 1875 nm
D. 2000 nm
|
| 5 | 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
|
| 6 | 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
|
| 7 | For Paschen series, the value of 'n' starts from |
A. 2
B. 4
C. 6
D. 8
|
| 8 | 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
|
| 9 | The idea of laser device was first introduced by C.H. Towners and Authers Schowlan is |
A. 1972
B. 1965
C. 1958
D. 1913
|
| 10 | A° is the unit of: |
A. Energy
B. Length
C. Nuclear energy
D. Work
|
Test Questions
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