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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
unit of Plank's constant is same as that of.
Question # 2
Pair production can take place only when energy of radiation is equal and greater than 1.02 MeV, thus correct option is.
Question # 3
Platinum wire becomes yellow at a temperature of.
Question # 4
We can never accurately describes all aspects of sbatomic particles simulatanously. It is correct according to:
Question # 5
Which one of the following paved the way for modern physics
Question # 6
In an nihilation emitted photons moves in opposite directions to conserve.
Question # 7
When platinum is heated is become dull red at:
Question # 8
By modern system of NAVSTAR, the speed any where on the earth can be determined to accuracy about.
Question # 9
The minimum energy required for occurrence of pair production is:
Question # 10
Pair production occurs only when energy of photon is at least equal in:
Question # 11
Disintegration of photon on striking a nucleus into an electron and positron is known as.
Question # 12
Eintein's Photoelectric equation is Ek= hf -∅ in this equation E1, refers to:
Question # 13
When platinum is it becomes orange at
Question # 14
If the kinetic energy of a free electron doubles, its de Broglie wavelength changes by the factor.
Question # 15
Einstein photoelectric equation is
Question # 16
In 1905, the special theory of relativity was proposed by
Question # 17
When the K.E. of photoelectric is zero, the frequency of incident photon is.
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 | The minimum frequency needed to emit an electron form metal surface is called: |
A. Work function
B. Threshold frequency
C. Quanta frequency
D. All of above
|
| 3 | Albert Einstein got noble prize for service in: |
A. Pair production
B. Annihilation of matter theory
C. Compton effect
D. Photoelectric effect
|
| 4 | In 1905, the special theory of relativity was proposed by |
A. Einstein
B. Bohr
C. Maxwell
D. De Broglie
|
| 5 | The energy of photon is givne by |
A. mv2/2
B. hf
C. Va e
D. mac1
|
| 6 | Eintein's Photoelectric equation is Ek= hf -∅ in this equation E1, refers to: |
A. K.E of al the emited electrons
B. Mean K.E of emited electrons
C. Maximum K.E of emited electrons
D. Minimum K.E of emited electrons
|
| 7 | The quantity/factor h/moc has the dimensions of. |
A. Length
B. Time
C. Mass
D. Energy
|
| 8 | 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
|
| 9 | In the equation if f2 > then | |
| 10 | Unit of Stephen's constant is |
A. W m K-2
B. W m-2 K-4
C. W m K-4
D. None
|
Test Questions