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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
The emission of electrons from metal surface when exposed to light is called:
Question # 2
Which one of the following physical quantities change with relativistic speed?
Question # 3
Platinum wire becomes white at a temperature of.
Question # 4
When platinum is heated is become dull red at:
Question # 5
A perfect absorber must also be perfect
Question # 6
Pair production cannto take place in vacuum because :
Question # 7
Energy of Black body radiation depends upon
Question # 8
The maximum kinetic energy of emitted photo electrons depends upon.
Question # 9
The physical quantity related to photon, that does not change in Compton scattering is.
Question # 10
The materialization of energy take place in the process of.
Question # 11
Which one of the following paved the way for modern physics
Question # 12
The uncertainty principle was given by
Question # 13
The number of electrons emitted depends upon
Question # 14
1 kg mass will be equivalent to energy.
Question # 15
Potassium Cathodes in photocell emit electrons for a light.
Question # 16
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.
Question # 17
Which is the most refined form of matter.
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 | When platinum is it becomes orange at. |
A. 500oC
B. 900oC
C. 1100oC
D. 1300oC
|
| 2 | Number of electros emitted in photo electric effect depend upon. |
A. Intensity of incident light
B. Frequency of incident light
C. Energy of incident light
D. Wavelength of incident of light
|
| 3 | Minimum energy needed to escape an electron ofrm metal surface is called: |
A. Threshold energy
B. Threshold frequency
C. Work function
D. Work ability
|
| 4 | Potassium Cathodes in photocell emit electrons for a light. |
A. Visible
B. Infra red
C. Ultra violet
D. X rays
|
| 5 | The numerical value of Compton wavelength is equal to |
A. 3.43 x 10-12 m
B. 1.43 x 10-12m
C. 2.43 x 10-12m
D. 0.43 x 10-12m
|
| 6 | Photo electrons are emitted y using visible light when the metal is. |
A. sodium
B. Copper
C. Nicked
D. Cobalt
|
| 7 | The unit for Plank's constant is: |
A. Js-1
B. Jm
C. Js
D. Jm2
|
| 8 | Platinum wire becomes yellow at a temperature of. |
A. 900 oC
B. 1300oC
C. 1600oC
D. 500oC
|
| 9 | The converses of annihilation of matter is: |
A. Photoelectric effect
B. Relativistic effect
C. Pair production
D. Compton effect
|
| 10 | The maximum kinetic energy of emitted photo electrons depends upon. |
A. The intensity of incident light
B. Frequency of the incident light
C. Metal surface
D. Both frequency of incident light and metal surface.
|
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