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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 1st Bohr atom in the hydrogen atom has radius
Question # 2
In Helium Neon laser, discharge tube is filled with Neon gas.
Question # 3
An atom can reside in excited state for
Question # 4
The shortest wave length is Bracket series has wave length.
Question # 5
Radius of first Bohr's orbit is.
Question # 6
In an electronic transition atom cannot emit.
Question # 7
An electron in H -atom is excited from ground state n=4 , How many spectral lines are possible in this case.
Question # 8
The value of Rydberg constant is
Question # 9
Photons emitted in inner shell transition are.
Question # 10
The unit of Rh is.
Question # 11
We can find from de Broglie formula
Question # 12
Laser can be made by creating.
Question # 13
The first laser was built by
Question # 14
First spectral series of hydrogen atom was discovered by
Question # 15
For Paschen series, the value of 'n' starts from
Question # 16
The longest wavelength of Paschen series is.
Question # 17
In according with Bohr's theory the K.E of the electron is equal to:
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 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
|
| 2 | If electron jumps from second orbit to first orbit in hydrogen atom it emits photon of. |
A. 3.40 eV
B. 10.20 eV
C. 13.6 eV
D. 3.8 eV
|
| 3 | Helium Neon Laser Beam emitted from discharge tube has a colour. |
A. Blue
B. Green
C. Red
D. Black
|
| 4 | 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
|
| 5 | Energy produced due to fission of uranium atom is: |
A. 500MeV
B. 200MeV
C. 700MeV
D. 750MEV
|
| 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 | Bremsstrahlung radiation are examples of |
A. Atomic spectra
B. Molecular spectra
C. Continuous spectra
D. Discrete spectra
|
| 8 | The unit of Rh is. |
A. ms-1
B. m
C. m2
D. m-1
|
| 9 | Charge on an atom is: |
A. Positive
B. Negative
C. Neutral
D. None of these
|
| 10 | The Balmer series is obtained when all the transition of electrons terminate on |
A. 1st orbit
B. 2nd orbit
C. 3rd orbit
D. 4th orbit
|
Test Questions