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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
Earth orbital speed is
Question # 2
In the Bohr's model of the hydrogen atom, the lowest orbit corresponds to:
Question # 3
In Helium Neon laser, the discharge tube is filled with
Question # 4
Laser can be made by creating.
Question # 5
The series in infrared region is:
Question # 6
Boher proposed his atomic model in:
Question # 7
Balmer series lies in region of electromagnetic spectrum.
Question # 8
Hydrogen atom spectrum does not lie in
Question # 9
Reflecting mirrors in laser is used to
Question # 10
The rest mass x ray photon is
Question # 11
In according with Bohr's theory the K.E of the electron is equal to:
Question # 12
Black Body radiation spectrum is an example of:
Question # 13
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 # 14
Electron volt is unit of:
Question # 15
X-rays were discovered by
Question # 16
The unit of Rh is.
Question # 17
Kx -Xrays are produced due to transition of electron from.
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 | 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
|
| 2 | 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
|
| 3 | We can find from de Broglie formula |
A. Wavelength
B. Amplitude
C. Speed of wave
D. Frequency of wave
|
| 4 | For Paschen series, the value of 'n' starts from |
A. 2
B. 4
C. 6
D. 8
|
| 5 | The shortest wave length is Bracket series has wave length. |
A. 16/Rn
B. Rn/16
C. 16 Rn
D. 4 Rn
|
| 6 | 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
|
| 7 | 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
|
| 8 | A° is the unit of: |
A. Energy
B. Length
C. Nuclear energy
D. Work
|
| 9 | 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
|
| 10 | 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
|
Test Questions