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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 energy of 4th Orbit in hydrogen atom is.
Question # 2
The idea of laser device was first introduced by C.H. Towners and Authers Schowlan is
Question # 3
Reflecting mirrors in laser is used to
Question # 4
The first orbit in the hydrogen atom has a radius.
Question # 5
Frequency of x-rays depends upon.
Question # 6
We can find from de Broglie formula
Question # 7
If electron jumps from second orbit to first orbit in hydrogen atom it emits photon of.
Question # 8
A° is the unit of:
Question # 9
Photons emitted in inner shell transition are.
Question # 10
Kx -Xrays are produced due to transition of electron from.
Question # 11
1 rad =
Question # 12
Energy produced due to fission of uranium atom is:
Question # 13
The following gas was identified in the sun using spectroscopy
Question # 14
An atom can reside in excited state for
Question # 15
Bremsstrahlung radiation are examples of
Question # 16
Balmer series lies in
Question # 17
Electron volt is unit of:
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 velocity of electron moving is 1st orbit of hydrogen atom is: |
A. 2.09 x 106 ms-1
B. 2.18 x106 ms-1
C. 2.19 x 106 ms-1
D. 3.18 x106 ms-1
|
| 2 | The temperature of core of nuclear reactor is: |
A. 1100°C
B. 1200°C
C. 1300°C
D. 1400°C
|
| 3 | The unit of Rh is. |
A. ms-1
B. m
C. m2
D. m-1
|
| 4 | Earth orbital speed is |
A. 10 km/s
B. 20 km/s
C. 30 km/s
D. 40 km/s
|
| 5 | Laser is a beam of light which is |
A. Monochromatic
B. Coherent
C. Unidirectional
D. All of these
|
| 6 | The line radiations emitted from by hydrogen filled discharge tube can be analyzed into. |
A. Band spectrum
B. Line spectrum
C. Continuous spectrum
D. Absorption spectrum
|
| 7 | The idea of laser device was first introduced by C.H. Towners and Authers Schowlan is |
A. 1972
B. 1965
C. 1958
D. 1913
|
| 8 | Which is not true for X rays |
A. X rays are not defected by electric field
B. X rays are polarized
C. X rays consist of electromagnetic waves
D. X rays can be diffracted by grating
|
| 9 | Charge on an atom is: |
A. Positive
B. Negative
C. Neutral
D. None of these
|
| 10 | 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
|
Test Questions