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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
Frequency of x-rays depends upon.
Question # 2
An electron in H -atom is excited from ground state n=4 , How many spectral lines are possible in this case.
Question # 3
Radius of first orbit of an atom is r1= 0.053 nm, Radius of second orbit r2 will be.
Question # 4
Study of hydrogen visible spectrum in
Question # 5
Charge on an atom is:
Question # 6
In Helium Neon laser, discharge tube is filled with Neon gas.
Question # 7
Energy produced due to fission of uranium atom is:
Question # 8
For Paschen series, the value of 'n' starts from
Question # 9
Charge on positron is:
Question # 10
An atom can reside in excited state for
Question # 11
In Helium Neon laser, the discharge tube is filled with
Question # 12
The longest wavelength of Paschen series is.
Question # 13
Laser is a device which can produce:
Question # 14
In the Bohr's model of the hydrogen atom, the lowest orbit corresponds to:
Question # 15
For Holography we use
Question # 16
The radius of hydrogen atom is:
Question # 17
The velocity of electron moving is 1st orbit of 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 | Laser can be made by creating. |
A. Meta stable
B. Population inversion
C. Excited state
D. All of these
|
| 2 | Target material used in x-rays tube have following properties. |
A. High atomic number and high melting pouint
B. High atomic number and low melting pouint
C. Low atomic number and low melting pouint
D. High atomic number only
|
| 3 | Boher proposed his atomic model in: |
A. 1910
B. 1911
C. 1912
D. 1913
|
| 4 | 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
|
| 5 | Which is not characteristic of Laser. |
A. Monochromatic
B. Coherent
C. Intense
D. Multi direction
|
| 6 | The X-rays diffraction with crystal was first studied by |
A. W.H Bragg
B. W.L. Bragg
C. Michelson
D. None of these
|
| 7 | The shortest wave length is Bracket series has wave length. |
A. 16/Rn
B. Rn/16
C. 16 Rn
D. 4 Rn
|
| 8 | 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
|
| 9 | When an electron in an atom goes from a lower to higher orbit its: |
A. K.E increases , P.E decreases
B. K.E increases , P.E increases
C. K.E decreases , P.E increases
D. K.E decreases , P.E decreases
|
| 10 | X- ray diffraction reveals that these are |
A. Particle type
B. Wave type
C. Both wave and particle
D. None of above
|
Test Questions