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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
Production of x rays is reverse process of
Question # 2
In according with Bohr's theory the K.E of the electron is equal to:
Question # 3
Hydrogen atom spectrum does not lie in
Question # 4
Which series lies in the ultraviolet region.
Question # 5
The first spectral lines were discovered in 1885, were
Question # 6
Balmer series lies in region of electromagnetic spectrum.
Question # 7
If electron jumps from second orbit to first orbit in hydrogen atom it emits photon of.
Question # 8
Which is not true for X rays
Question # 9
Target material used in x-rays tube have following properties.
Question # 10
Radius of first orbit of an atom is r1= 0.053 nm, Radius of second orbit r2 will be.
Question # 11
An electron in H -atom is excited from ground state n=4 , How many spectral lines are possible in this case.
Question # 12
In Helium Neon laser, the discharge tube is filled with
Question # 13
_____ has the largest de Broglie wavelength at same speed.
Question # 14
A° is the unit of:
Question # 15
Which of the following is one of the spectral series of atomic hydrogen?
Question # 16
Laser is a device which can produce:
Question # 17
Study of hydrogen visible spectrum in
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 first spectral lines were discovered in 1885, were |
A. Paschen series
B. Balmer series
C. Pfund series
D. Bracket series
|
| 2 | The first orbit in the hydrogen atom has a radius. |
A. 0.53 nm
B. 0.053 nm
C. 0.0053 nm
D. 0.00053 nm
|
| 3 | The rest mass x ray photon is |
A. Infinite
B. Zero
C. 1.67 X-17 kg
D. All of the above
|
| 4 | 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
|
| 5 | The following gas was identified in the sun using spectroscopy |
A. Hydrogen
B. Helium
C. Carbon
D. Nitrogen
|
| 6 | Black Body radiation spectrum is an example of: |
A. Atomic spectra
B. Line spectra
C. Continuous spectra
D. None of above
|
| 7 | For Paschen series, the value of 'n' starts from |
A. 2
B. 4
C. 6
D. 8
|
| 8 | 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
|
| 9 | Radius of first Bohr's orbit is. |
A. 0.053 nm
B. 0.053 mm
C. 0.053 micro meter
D. 0.053 m
|
| 10 | Which is not characteristic of Laser. |
A. Monochromatic
B. Coherent
C. Intense
D. Multi direction
|
Test Questions
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