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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 radius of hydrogen atom is:
Question # 2
Paschen series lies in the
Question # 3
If electron jumps from second orbit to first orbit in hydrogen atom it emits photon of.
Question # 4
Hydrogen atom spectrum does not lie in
Question # 5
The line radiations emitted from by hydrogen filled discharge tube can be analyzed into.
Question # 6
1 rad =
Question # 7
In an electronic transition atom cannot emit.
Question # 8
Which of the following series of hydrogen spectrum lies in ultra violet region.
Question # 9
Charge on an atom is:
Question # 10
Earth orbital speed is
Question # 11
Reflecting mirrors in laser is used to
Question # 12
Kx -Xrays are produced due to transition of electron from.
Question # 13
Frequency of x-rays depends upon.
Question # 14
Balmer series lies in
Question # 15
Laser is a device which can produce:
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 following gas was identified in the sun using spectroscopy |
A. Hydrogen
B. Helium
C. Carbon
D. Nitrogen
|
| 2 | The first laser was built by |
A. ArthursSchawalow
B. T.H.Maiman
C. Peter Sorokin
D. C.H.Townes
|
| 3 | Study of hydrogen visible spectrum in |
A. 1886
B. 1887
C. 1895
D. 1885
|
| 4 | 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
|
| 5 | Which is not true for X rays |
A. X rays are not defected by electric field
B. X rays are polarized
C. X rays consist of electromagnetic waves
D. X rays can be diffracted by grating
|
| 6 | Production of x rays is reverse process of |
A. Photo electric effect
B. Compton effect
C. An nihilation
D. Pair production
|
| 7 | 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
|
| 8 | For Paschen series, the value of 'n' starts from |
A. 2
B. 4
C. 6
D. 8
|
| 9 | 1 rad = |
A. 0.001Gy
B. 0.01Gy
C. 0.1Gy
D. 1.01Gy
|
| 10 | 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
|
Test Questions