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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 line radiations emitted from by hydrogen filled discharge tube can be analyzed into.
Question # 2
A° is the unit of:
Question # 3
The temperature of core of nuclear reactor is:
Question # 4
Laser is a device which can produce:
Question # 5
Kx -Xrays are produced due to transition of electron from.
Question # 6
The series in infrared region is:
Question # 7
Target material used in x-rays tube have following properties.
Question # 8
When meta I is heated sufficiently electrons are given off by the metal. This phenomenon is known as.
Question # 9
The following gas was identified in the sun using spectroscopy
Question # 10
The velocity of electron moving is 1st orbit of hydrogen atom is:
Question # 11
If electron jumps from second orbit to first orbit in hydrogen atom it emits photon of.
Question # 12
Helium-Neon laser discharge tube contains neon
Question # 13
An electron in H -atom is excited from ground state n=4 , How many spectral lines are possible in this case.
Question # 14
For Paschen series, the value of 'n' starts from
Question # 15
The radius of 10th orbit in hydrogen atom is.
Question # 16
Balmer Empirical formula explains the electromagnetic radiation of any excited atom in terms of their.
Question # 17
Which of the following is one of the spectral series of atomic hydrogen?
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 | In the Bohr's model of the hydrogen atom, the lowest orbit corresponds to: |
A. Infinite energy
B. Maximum energy
C. Minimum energy
D. Zero energy
|
| 2 | 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
|
| 3 | 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
|
| 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 | Charge on positron is: |
A. Negative
B. Positive
C. Netural
D. None of these
|
| 6 | The typical nuclei are less than: |
A. 10-16m
B. 10-14m
C. 10-12m
D. 10-10m
|
| 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 | Which is not characteristic of Laser. |
A. Monochromatic
B. Coherent
C. Intense
D. Multi direction
|
| 9 | Boher proposed his atomic model in: |
A. 1910
B. 1911
C. 1912
D. 1913
|
| 10 | Balmer Empirical formula explains the electromagnetic radiation of any excited atom in terms of their. |
A. Energy
B. Mass
C. Wave length
D. Momentum
|
Test Questions