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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 first orbit in the hydrogen atom has a radius.
Question # 2
The value of Rydberg constant is:
Question # 3
In Helium Neon laser, discharge tube is filled with Neon gas.
Question # 4
The radius of hydrogen atom is:
Question # 5
The 1st Bohr atom in the hydrogen atom has radius
Question # 6
Production of x rays is reverse process of
Question # 7
If electron jumps from second orbit to first orbit in hydrogen atom it emits photon of.
Question # 8
X-rays were discovered by
Question # 9
Charge on an atom is:
Question # 10
The longest wavelength of Paschen series is.
Question # 11
Bremsstrahlung radiation are examples of
Question # 12
Paschen series lies in the
Question # 13
Balmer series lies in
Question # 14
In the Bohr's model of the hydrogen atom, the lowest orbit corresponds to:
Question # 15
The first spectral lines were discovered in 1885, were
Question # 16
The Balmer series is obtained when all the transition of electrons terminate on
Question # 17
Laser is a beam of light which 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 | 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
|
| 2 | The longest wavelength of Paschen series is. |
A. 656 nm
B. 1094 nm
C. 1875 nm
D. 2000 nm
|
| 3 | 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
|
| 4 | We can find from de Broglie formula |
A. Wavelength
B. Amplitude
C. Speed of wave
D. Frequency of wave
|
| 5 | The rest mass x ray photon is |
A. Infinite
B. Zero
C. 1.67 X-17 kg
D. All of the above
|
| 6 | The typical nuclei are less than: |
A. 10-16m
B. 10-14m
C. 10-12m
D. 10-10m
|
| 7 | If electron jumps from second orbit to first orbit in hydrogen atom it emits photon of. |
A. 3.40 eV
B. 10.20 eV
C. 13.6 eV
D. 3.8 eV
|
| 8 | Kx -Xrays are produced due to transition of electron from. |
A. K to L shell
B. L to K shell
C. M to K shell
D. M to L shell
|
| 9 | Bremsstrahlung radiation are examples of |
A. Atomic spectra
B. Molecular spectra
C. Continuous spectra
D. Discrete spectra
|
| 10 | Which series lies in the ultraviolet region. |
A. Balmer series
B. Bracket series
C. Ptund series
D. Lyman series
|
Test Questions
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