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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
The following gas was identified in the sun using spectroscopy
Question # 2
The idea of laser device was first introduced by C.H. Towners and Authers Schowlan is
Question # 3
Target material used in x-rays tube have following properties.
Question # 4
Which is not characteristic of Laser.
Question # 5
1 rad =
Question # 6
Production of x rays is reverse process of
Question # 7
If the ionization energy of hydrogen atom is 13.6 eV, its ionization potential will be
Question # 8
Balmer series lies in region of electromagnetic spectrum.
Question # 9
Frequency of x-rays depends upon.
Question # 10
Kx -Xrays are produced due to transition of electron from.
Question # 11
The Balmer series is obtained when all the transition of electrons terminate on
Question # 12
The longest wavelength of Paschen series is.
Question # 13
Electron volt is unit of:
Question # 14
A° is the unit of:
Question # 15
In the Bohr's model of the hydrogen atom, the lowest orbit corresponds to:
Question # 16
In an electronic transition atom cannot emit.
Question # 17
The first orbit in the hydrogen atom has a radius.
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 | For an atom of hydrogen atom the radius of the first orbit is given by: |
A. H/me2
B. me/4h2
C. h2/4π2 kme2
D. h2 me2
|
| 2 | 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
|
| 3 | Balmer Empirical formula explains the electromagnetic radiation of any excited atom in terms of their. |
A. Energy
B. Mass
C. Wave length
D. Momentum
|
| 4 | The idea of laser device was first introduced by C.H. Towners and Authers Schowlan is |
A. 1972
B. 1965
C. 1958
D. 1913
|
| 5 | First spectral series of hydrogen atom was discovered by |
A. Lyman
B. Rydberg
C. Balmer
D. Paschen
|
| 6 | Charge on an atom is: |
A. Positive
B. Negative
C. Neutral
D. None of these
|
| 7 | 1 rad = |
A. 0.001Gy
B. 0.01Gy
C. 0.1Gy
D. 1.01Gy
|
| 8 | An atom can reside in excited state for |
A. 10-8 second
B. One second
C. 10-10 second
D. More than one second
|
| 9 | The temperature of core of nuclear reactor is: |
A. 1100°C
B. 1200°C
C. 1300°C
D. 1400°C
|
| 10 | In Helium Neon laser, discharge tube is filled with Neon gas. |
A. 10%
B. 15%
C. 85%
D. 90%
|
Test Questions
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