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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
Life time of metastable states is
Question # 2
The value of Rydberg constant is:
Question # 3
The shortest wave length is Bracket series has wave length.
Question # 4
The following gas was identified in the sun using spectroscopy
Question # 5
Production of x rays is reverse process of
Question # 6
When an electron in an atom goes from a lower to higher orbit its:
Question # 7
1 rem =
Question # 8
Which is not characteristic of Laser.
Question # 9
An electron in H -atom is excited from ground state n=4 , How many spectral lines are possible in this case.
Question # 10
Balmer Empirical formula explains the electromagnetic radiation of any excited atom in terms of their.
Question # 11
Charge on positron is:
Question # 12
The radius of hydrogen atom is:
Question # 13
The energy of 4th Orbit in hydrogen atom is.
Question # 14
The first theory about the structure of an atom was introduced by
Question # 15
For Paschen series, the value of 'n' starts from
Question # 16
Frequency of x-rays depends upon.
Question # 17
The line radiations emitted from by hydrogen filled discharge tube can be analyzed into.
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 | Balmer series lies in region of electromagnetic spectrum. |
A. Infrared
B. Visible
C. Ultraviolet
D. Fra infrared
|
| 2 | In Helium Neon laser, discharge tube is filled with Neon gas. |
A. 10%
B. 15%
C. 85%
D. 90%
|
| 3 | If 13.6 eV energy is required to ionize the hydrogen atom, then the required energy to remove an electron from n=2 is: |
A. 10.2 eV
B. 0 eV
C. 3.4 eV
D. 6.8 eV
|
| 4 | An atom can reside in excited state for |
A. 10-8 second
B. One second
C. 10-10 second
D. More than one second
|
| 5 | The radius of hydrogen atom is: |
A. 0.53A°
B. 0.053A°
C. 0.53 x 10-9
D. 0.053 x10-9
|
| 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 | The process by which lesser beam can be used to generate 3-dimensional images of objects is called |
A. Holography
B. Geo graphy
C. Tomography
D. Radio graphy
|
| 8 | 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
|
| 9 | Laser is a device which can produce: |
A. Intense beam of light
B. Coherant beam of light
C. Monochromatic beam of light
D. All of the above
|
| 10 | _____ has the largest de Broglie wavelength at same speed. |
A. Proton
B. Alpha particle
C. Carbon atom
D. Electron
|
Test Questions