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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 first spectral lines were discovered in 1885, were
Question # 2
The series in visible region is:
Question # 3
Frequency of x-rays depends upon.
Question # 4
Charge on positron is:
Question # 5
First spectral series of hydrogen atom was discovered by
Question # 6
Charge on an atom is:
Question # 7
Which is not true for X rays
Question # 8
The energy of 4th Orbit in hydrogen atom is.
Question # 9
The 1st Bohr atom in the hydrogen atom has radius
Question # 10
The unit of Rh is.
Question # 11
1 rem =
Question # 12
The longest wavelength of Paschen series is.
Question # 13
The series in infrared region is:
Question # 14
Photons emitted in inner shell transition are.
Question # 15
The idea of laser device was first introduced by C.H. Towners and Authers Schowlan is
Question # 16
For an atom of hydrogen atom the radius of the first orbit is given by:
Question # 17
In an electronic transition atom cannot emit.
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 Helium Neon laser, discharge tube is filled with Neon gas. |
A. 10%
B. 15%
C. 85%
D. 90%
|
| 2 | Earth orbital speed is |
A. 10 km/s
B. 20 km/s
C. 30 km/s
D. 40 km/s
|
| 3 | For Holography we use |
A. X ray
B. Laser
C. gama rays
D. Beta rays
|
| 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 | The shortest wave length is Bracket series has wave length. |
A. 16/Rn
B. Rn/16
C. 16 Rn
D. 4 Rn
|
| 6 | An electron in H -atom is excited from ground state n=4 , How many spectral lines are possible in this case. |
A. 6
B. 5
C. 4
D. 3
|
| 7 | The idea of laser device was first introduced by C.H. Towners and Authers Schowlan is |
A. 1972
B. 1965
C. 1958
D. 1913
|
| 8 | In Helium Neon laser, the discharge tube is filled with |
A. 80% He, 20% Neon
B. 85% He, 15% Neon
C. 83% He, 17% Neon
D. 90% He, 10% Neon
|
| 9 | 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
|
| 10 | X-rays were discovered by |
A. Curie
B. Henry Becquerel
C. Rontgen
D. None of these
|
Test Questions