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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
Charge on positron is:
Question # 3
Laser is a device which can produce:
Question # 4
The value of Rydberg constant is:
Question # 5
Which is not characteristic of Laser.
Question # 6
Study of hydrogen visible spectrum in
Question # 7
X-rays were discovered by
Question # 8
An electron in H -atom is excited from ground state n=4 , How many spectral lines are possible in this case.
Question # 9
Photons emitted in inner shell transition are.
Question # 10
Paschen series lies in the
Question # 11
The first theory about the structure of an atom was introduced by
Question # 12
The X-rays diffraction with crystal was first studied by
Question # 13
_____ has the largest de Broglie wavelength at same speed.
Question # 14
The unit of Rh is.
Question # 15
The velocity of electron moving is 1st orbit of hydrogen atom is:
Question # 16
For Holography we use
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 | X-rays were discovered by |
A. Curie
B. Henry Becquerel
C. Rontgen
D. None of these
|
| 2 | The radius of hydrogen atom is: |
A. 0.53A°
B. 0.053A°
C. 0.53 x 10-9
D. 0.053 x10-9
|
| 3 | 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
|
| 4 | 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
|
| 5 | 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
|
| 6 | 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
|
| 7 | 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
|
| 8 | The first laser was built by |
A. ArthursSchawalow
B. T.H.Maiman
C. Peter Sorokin
D. C.H.Townes
|
| 9 | X- ray diffraction reveals that these are |
A. Particle type
B. Wave type
C. Both wave and particle
D. None of above
|
| 10 | The temperature of core of nuclear reactor is: |
A. 1100°C
B. 1200°C
C. 1300°C
D. 1400°C
|
Test Questions