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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
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Question # 1
Frequency of x-rays depends upon.
Question # 2
Laser can be made by creating.
Question # 3
Radius of first orbit of an atom is r1= 0.053 nm, Radius of second orbit r2 will be.
Question # 4
The Balmer series is obtained when all the transition of electrons terminate on
Question # 5
An electron in H -atom is excited from ground state n=4 , How many spectral lines are possible in this case.
Question # 6
The series in visible region is:
Question # 7
The process by which lesser beam can be used to generate 3-dimensional images of objects is called
Question # 8
Which is not characteristic of Laser.
Question # 9
The X-rays diffraction with crystal was first studied by
Question # 10
In Helium Neon laser, discharge tube is filled with Neon gas.
Question # 11
Study of hydrogen visible spectrum in
Question # 12
Radius of first Bohr's orbit is.
Question # 13
For Paschen series, the value of 'n' starts from
Question # 14
The first laser was built by
Question # 15
First spectral series of hydrogen atom was discovered by
Question # 16
If electron jumps from second orbit to first orbit in hydrogen atom it emits photon of.
Question # 17
In Helium Neon laser, the discharge tube is filled with
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 | Electron volt is unit of: |
A. Chemical energy
B. Potential energy
C. Nuclear energy
D. heat energy
|
| 2 | 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
|
| 3 | Black Body radiation spectrum is an example of: |
A. Atomic spectra
B. Line spectra
C. Continuous spectra
D. None of above
|
| 4 | Laser is a device which can produce: |
A. Intense beam of light
B. Coherant beam of light
C. Monochromatic beam of light
D. All of the above
|
| 5 | The radius of hydrogen atom is: |
A. 0.53A°
B. 0.053A°
C. 0.53 x 10-9
D. 0.053 x10-9
|
| 6 | Which is not characteristic of Laser. |
A. Monochromatic
B. Coherent
C. Intense
D. Multi direction
|
| 7 | 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
|
| 8 | When meta I is heated sufficiently electrons are given off by the metal. This phenomenon is known as. |
A. Photoelectric effect
B. Piezo electric effect
C. Thermionic emission
D. Secondary emission
|
| 9 | 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
|
| 10 | 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
|
Test Questions