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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
X-rays were discovered by
Question # 2
Reflecting mirrors in laser is used to
Question # 3
The radius of hydrogen atom is:
Question # 4
Life time of metastable states is
Question # 5
The energy of 4th Orbit in hydrogen atom is.
Question # 6
Radius of first Bohr's orbit is.
Question # 7
Bremsstrahlung radiation are examples of
Question # 8
Which is not characteristic of Laser.
Question # 9
Paschen series lies in the
Question # 10
Which series lies in the ultraviolet region.
Question # 11
For Paschen series, the value of 'n' starts from
Question # 12
Energy produced due to fission of uranium atom is:
Question # 13
The unit of Rh is.
Question # 14
X- ray diffraction reveals that these are
Question # 15
Radius of first orbit of an atom is r1= 0.053 nm, Radius of second orbit r2 will be.
Question # 16
In according with Bohr's theory the K.E of the electron is equal to:
Question # 17
Helium Neon Laser Beam emitted from discharge tube has a colour.
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 | Radius of first Bohr's orbit is. |
A. 0.053 nm
B. 0.053 mm
C. 0.053 micro meter
D. 0.053 m
|
| 2 | A° is the unit of: |
A. Energy
B. Length
C. Nuclear energy
D. Work
|
| 3 | The radius of hydrogen atom is: |
A. 0.53A°
B. 0.053A°
C. 0.53 x 10-9
D. 0.053 x10-9
|
| 4 | 1 rad = |
A. 0.001Gy
B. 0.01Gy
C. 0.1Gy
D. 1.01Gy
|
| 5 | 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
|
| 6 | 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
|
| 7 | In the Bohr's model of the hydrogen atom, the lowest orbit corresponds to: |
A. Infinite energy
B. Maximum energy
C. Minimum energy
D. Zero energy
|
| 8 | The typical nuclei are less than: |
A. 10-16m
B. 10-14m
C. 10-12m
D. 10-10m
|
| 9 | 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
|
| 10 | The longest wavelength of Paschen series is. |
A. 656 nm
B. 1094 nm
C. 1875 nm
D. 2000 nm
|
Test Questions