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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 following gas was identified in the sun using spectroscopy
Question # 2
In according with Bohr's theory the K.E of the electron is equal to:
Question # 3
The 1st Bohr atom in the hydrogen atom has radius
Question # 4
Laser is a beam of light which is
Question # 5
Balmer Empirical formula explains the electromagnetic radiation of any excited atom in terms of their.
Question # 6
In Helium Neon laser, the discharge tube is filled with
Question # 7
The idea of laser device was first introduced by C.H. Towners and Authers Schowlan is
Question # 8
For an atom of hydrogen atom the radius of the first orbit is given by:
Question # 9
Laser is a device which can produce:
Question # 10
The rest mass x ray photon is
Question # 11
Charge on positron is:
Question # 12
The longest wavelength of Paschen series is.
Question # 13
If the ionization energy of hydrogen atom is 13.6 eV, its ionization potential will be
Question # 14
The unit of Rh is.
Question # 15
The energy of 4th Orbit in hydrogen atom is.
Question # 16
If electron jumps from second orbit to first orbit in hydrogen atom it emits photon of.
Question # 17
The temperature of core of nuclear reactor 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 | Laser is a beam of light which is |
A. Monochromatic
B. Coherent
C. Unidirectional
D. All of these
|
| 2 | The typical nuclei are less than: |
A. 10-16m
B. 10-14m
C. 10-12m
D. 10-10m
|
| 3 | The following gas was identified in the sun using spectroscopy |
A. Hydrogen
B. Helium
C. Carbon
D. Nitrogen
|
| 4 | Study of hydrogen visible spectrum in |
A. 1886
B. 1887
C. 1895
D. 1885
|
| 5 | Radius of first orbit of an atom is r1= 0.053 nm, Radius of second orbit r2 will be. |
A. 0.106 nm
B. 0.212 nm
C. 0.053 nm
D. 0.53 x 10-10 nm
|
| 6 | Life time of metastable states is |
A. 10-6 sec or more
B. 10-3 sec or more
C. 10-5 sec or more
D. None of these
|
| 7 | An atom can reside in excited state for |
A. 10-8 second
B. One second
C. 10-10 second
D. More than one second
|
| 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 | Boher proposed his atomic model in: |
A. 1910
B. 1911
C. 1912
D. 1913
|
| 10 | The radius of hydrogen atom is: |
A. 0.53A°
B. 0.053A°
C. 0.53 x 10-9
D. 0.053 x10-9
|
Test Questions
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