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FSC Part 2 Physics
Chapter 19 Test
Start Chapter 19 Test
FSC Part 2 Physics Chapter Wise Test
(English Medium)
MCQ's Test For Chapter 0 "Physics FSC Part 2 Chapter 19 Online MCQ's Test"
Try The MCQ's Test For Chapter 0 "Physics FSC Part 2 Chapter 19 Online MCQ's Test"
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Total Questions17
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Time Allowed20
Physics FSC Part 2 Chapter 19 Online MCQ's Test
00:00
Question # 1
Photodiode is used for wave nature of.
Question # 2
All motions are
Question # 3
A perfect absorber must also be perfect
Question # 4
Unit of Stephen's constant is
Question # 5
The dimensions of Plank's constant is same as that of.
Question # 6
In an nihilation emitted photons moves in opposite directions to conserve.
Question # 7
If an object moves with speed of light, its mass will be.
Question # 8
Number of electros emitted in photo electric effect depend upon.
Question # 9
Pair production can take place only when energy of radiation is equal and greater than 1.02 MeV, thus correct option is.
Question # 10
The photoelectric effect predicts that light is made of
Question # 11
Wave nature of light appears in
Question # 12
The mass of an object will be doubled at speed.
Question # 13
A positron is an anti particle of.
Question # 14
Maximum Compton shift is observed at.
Question # 15
The value of Stefan is constant is:
Question # 16
The concept of direction is purely
Question # 17
When platinum wire is heated, it changes to cherry red at temperature.
FSC Part 2 Physics Chapter 19 Online Test MCQ's
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FSc Part II Physics Chapter 0 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | Minimum energy needed to escape an electron ofrm metal surface is called: |
A. Threshold energy
B. Threshold frequency
C. Work function
D. Work ability
|
| 2 | The emission of electrons from metal surface when exposed to light is called: |
A. Compton effect
B. Pair production
C. Photoelectric effect
D. None of above
|
| 3 | The quantity/factor h/moc has the dimensions of. |
A. Length
B. Time
C. Mass
D. Energy
|
| 4 | The unit for Plank's constant is: |
A. Js-1
B. Jm
C. Js
D. Jm2
|
| 5 | Light of 4.5 eV is incident on a Cesium surface and stopping potential is 0.25 eV, maximum K.E. of emitted electron is. |
A. 4.5 eV
B. 4.25 eV
C. 4.75 eV
D. 0.25 eV
|
| 6 | Antiparticle of electron is. |
A. proton
B. Photon
C. Positron
D. Neutron
|
| 7 | The principle regarding the dual nature of light was first discovered by |
A. Heisenberg
B. Compton
C. J.J.Thomson
D. De-Broglie
|
| 8 | By modern system of NAVSTAR, the speed any where on the earth can be determined to accuracy about. |
A. 20 ms-1
B. 10 ms-1
C. 2 cms-1
D. 2 ms-1
|
| 9 | When the K.E. of photoelectric is zero, the frequency of incident photon is. |
A. Less than
B. greater than
C. Equal to
D. Much greater
|
| 10 | Pair production can take place only when energy of radiation is equal and greater than 1.02 MeV, thus correct option is. |
A. X rays
B. Gama rays
C. Heat Radiation
D. Ultraviolet rays
|
Test Questions
Share your comments & questions here
Ali raza
09 Dec 2017Helpful
Intikhab
11 Aug 201710/17
tayyab
30 Apr 2016good and very helpful for exam preparation