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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
In an electronic transition atom cannot emit.
Question # 2
An electron in H -atom is excited from ground state n=4 , How many spectral lines are possible in this case.
Question # 3
The velocity of electron moving is 1st orbit of hydrogen atom is:
Question # 4
The 1st Bohr atom in the hydrogen atom has radius
Question # 5
We can find from de Broglie formula
Question # 6
Which is not true for X rays
Question # 7
When an electron in an atom goes from a lower to higher orbit its:
Question # 8
Frequency of x-rays depends upon.
Question # 9
In the Bohr's model of the hydrogen atom, the lowest orbit corresponds to:
Question # 10
If the ionization energy of hydrogen atom is 13.6 eV, its ionization potential will be
Question # 11
In Helium Neon laser, discharge tube is filled with Neon gas.
Question # 12
Photons emitted in inner shell transition are.
Question # 13
X- ray diffraction reveals that these are
Question # 14
Which is not characteristic of Laser.
Question # 15
In according with Bohr's theory the K.E of the electron is equal to:
Question # 16
The unit of Rh is.
Question # 17
For an atom of hydrogen atom the radius of the first orbit is given by:
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 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
|
| 2 | Reflecting mirrors in laser is used to |
A. Further stimulation
B. For producing more energetic lasers
C. Both (a) and (b)
D. None of these
|
| 3 | 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
|
| 4 | 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
|
| 5 | Which of the following is one of the spectral series of atomic hydrogen? |
A. Brockett series
B. Balmer series
C. P fund series
D. All of above
|
| 6 | An atom can reside in excited state for |
A. 10-8 second
B. One second
C. 10-10 second
D. More than one second
|
| 7 | When an electron in an atom goes from a lower to higher orbit its: |
A. K.E increases , P.E decreases
B. K.E increases , P.E increases
C. K.E decreases , P.E increases
D. K.E decreases , P.E decreases
|
| 8 | The unit of Rh is. |
A. ms-1
B. m
C. m2
D. m-1
|
| 9 | For an atom of hydrogen atom the radius of the first orbit is given by: |
A. H/me2
B. me/4h2
C. h2/4π2 kme2
D. h2 me2
|
| 10 | The series in visible region is: |
A. Balmer series
B. Pfund series
C. Paschen series
D. None of above
|
Test Questions