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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 value of Rydberg constant is
Question # 2
Which is not true for X rays
Question # 3
Life time of metastable states is
Question # 4
_____ has the largest de Broglie wavelength at same speed.
Question # 5
When meta I is heated sufficiently electrons are given off by the metal. This phenomenon is known as.
Question # 6
First spectral series of hydrogen atom was discovered by
Question # 7
When an electron in an atom goes from a lower to higher orbit its:
Question # 8
The typical nuclei are less than:
Question # 9
For Holography we use
Question # 10
Balmer series lies in region of electromagnetic spectrum.
Question # 11
Energy produced due to fission of uranium atom is:
Question # 12
We can find from de Broglie formula
Question # 13
Radius of first orbit of an atom is r1= 0.053 nm, Radius of second orbit r2 will be.
Question # 14
Balmer series lies in
Question # 15
Production of x rays is reverse process of
Question # 16
The velocity of electron moving is 1st orbit of hydrogen atom is:
Question # 17
The series in infrared region 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 following gas was identified in the sun using spectroscopy |
A. Hydrogen
B. Helium
C. Carbon
D. Nitrogen
|
| 3 | The first laser was built by |
A. ArthursSchawalow
B. T.H.Maiman
C. Peter Sorokin
D. C.H.Townes
|
| 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 | In Helium Neon laser, discharge tube is filled with Neon gas. |
A. 10%
B. 15%
C. 85%
D. 90%
|
| 6 | We can find from de Broglie formula |
A. Wavelength
B. Amplitude
C. Speed of wave
D. Frequency of wave
|
| 7 | The first spectral lines were discovered in 1885, were |
A. Paschen series
B. Balmer series
C. Pfund series
D. Bracket series
|
| 8 | 1 rad = |
A. 0.001Gy
B. 0.01Gy
C. 0.1Gy
D. 1.01Gy
|
| 9 | If the ionization energy of hydrogen atom is 13.6 eV, its ionization potential will be |
A. 136.0 volt
B. 3.0 volt
C. 13.6 volt
D. None of these
|
| 10 | Kx -Xrays are produced due to transition of electron from. |
A. K to L shell
B. L to K shell
C. M to K shell
D. M to L shell
|
Test Questions