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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
Balmer Empirical formula explains the electromagnetic radiation of any excited atom in terms of their.
Question # 2
Reflecting mirrors in laser is used to
Question # 3
The radius of 10th orbit in hydrogen atom is.
Question # 4
Charge on positron is:
Question # 5
The Balmer series is obtained when all the transition of electrons terminate on
Question # 6
Kx -Xrays are produced due to transition of electron from.
Question # 7
Balmer series lies in
Question # 8
Which of the following is one of the spectral series of atomic hydrogen?
Question # 9
For Paschen series, the value of 'n' starts from
Question # 10
Electron volt is unit of:
Question # 11
Balmer series lies in region of electromagnetic spectrum.
Question # 12
The value of Rydberg constant is
Question # 13
In the Bohr's model of the hydrogen atom, the lowest orbit corresponds to:
Question # 14
The energy of 4th Orbit in hydrogen atom is.
Question # 15
Frequency of x-rays depends upon.
Question # 16
The first spectral lines were discovered in 1885, were
Question # 17
If 13.6 eV energy is required to ionize the hydrogen atom, then the required energy to remove an electron from n=2 is:
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 | The series in infrared region is: |
A. Paschen series
B. Bracket series
C. Pfund series
D. All of above
|
| 2 | Study of hydrogen visible spectrum in |
A. 1886
B. 1887
C. 1895
D. 1885
|
| 3 | The first spectral lines were discovered in 1885, were |
A. Paschen series
B. Balmer series
C. Pfund series
D. Bracket series
|
| 4 | 1 rad = |
A. 0.001Gy
B. 0.01Gy
C. 0.1Gy
D. 1.01Gy
|
| 5 | Electron volt is unit of: |
A. Chemical energy
B. Potential energy
C. Nuclear energy
D. heat energy
|
| 6 | 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
|
| 7 | First spectral series of hydrogen atom was discovered by |
A. Lyman
B. Rydberg
C. Balmer
D. Paschen
|
| 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 rest mass x ray photon is |
A. Infinite
B. Zero
C. 1.67 X-17 kg
D. All of the above
|
| 10 | The first laser was built by |
A. ArthursSchawalow
B. T.H.Maiman
C. Peter Sorokin
D. C.H.Townes
|
Test Questions