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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 laser was built by
Question # 2
We can find from de Broglie formula
Question # 3
Radius of first orbit of an atom is r1= 0.053 nm, Radius of second orbit r2 will be.
Question # 4
Target material used in x-rays tube have following properties.
Question # 5
The shortest wave length is Bracket series has wave length.
Question # 6
Life time of metastable states is
Question # 7
For Holography we use
Question # 8
The value of Rydberg constant is
Question # 9
The value of Rydberg constant is:
Question # 10
Black Body radiation spectrum is an example of:
Question # 11
Which of the following is one of the spectral series of atomic hydrogen?
Question # 12
Reflecting mirrors in laser is used to
Question # 13
The temperature of core of nuclear reactor is:
Question # 14
Bremsstrahlung radiation are examples of
Question # 15
X-rays were discovered by
Question # 16
The rest mass x ray photon is
Question # 17
The radius of 10th orbit in hydrogen atom 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 energy of 4th Orbit in hydrogen atom is. |
A. -2.51 eV
B. -3.50 eV
C. -13.60 eV
D. -0.85 eV
|
| 2 | The first laser was built by |
A. ArthursSchawalow
B. T.H.Maiman
C. Peter Sorokin
D. C.H.Townes
|
| 3 | The idea of laser device was first introduced by C.H. Towners and Authers Schowlan is |
A. 1972
B. 1965
C. 1958
D. 1913
|
| 4 | 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
|
| 5 | For Holography we use |
A. X ray
B. Laser
C. gama rays
D. Beta rays
|
| 6 | The radius of hydrogen atom is: |
A. 0.53A°
B. 0.053A°
C. 0.53 x 10-9
D. 0.053 x10-9
|
| 7 | For Paschen series, the value of 'n' starts from |
A. 2
B. 4
C. 6
D. 8
|
| 8 | Photons emitted in inner shell transition are. |
A. Continuous X -rays
B. Discontinuous X rays
C. Characteristic X rays
D. Energetic X rays
|
| 9 | The first spectral lines were discovered in 1885, were |
A. Paschen series
B. Balmer series
C. Pfund series
D. Bracket series
|
| 10 | Charge on positron is: |
A. Negative
B. Positive
C. Netural
D. None of these
|
Test Questions
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