Second Year Physics Chapter 19 Online MCQ Test for 2nd Year Physics Chapter 19 Dawn of Modern Physics Preparation

FSC Part 2 Physics
Chapter 19 Test

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Physics FSC Part 2 Chapter 19 Online MCQ's Test

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Question # 1

Photo electrons are emitted y using visible light when the metal is.

Question # 2

The minimum frequency needed to emit an electron form metal surface is called:

Question # 3

When platinum wire is heated, it changes to cherry red at temperature.

Question # 4

Platinum wire becomes white at a temperature of.

Question # 5

Wave nature of light appears in

Question # 6

The converses of annihilation of matter is:

Question # 7

unit of Plank's constant is same as that of.

Question # 8

The quantity/factor h/moc has the dimensions of.

Question # 9

Compton shift is maximum for scattering angle of photon

Question # 10

The number of electrons emitted depends upon

Question # 11

Anti particle of electron is

Question # 12

Albert Einstein got noble prize in:

Question # 13

The stopping potential for a certain metal is 10 volts. Thus work function for the cathode is.

Question # 14

Compton's effect is associated with

Question # 15

The special theory of relativity based on.

Question # 16

The existence of positron was discovered in:

Question # 17

The uncertainty principle was given by

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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 The energy of the photon of wavelength 500 nm is.
A. 3.10 eV
B. 2.49 eV
C. 1.77 eV
D. 1.52 eV
2 We can never accurately describes all aspects of sbatomic particles simulatanously. It is correct according to:
A. Uncertainity Priciple
B. De-broglie Theory
C. Einstin Theory
D. Photo electric effect
3 When platinum is it becomes orange at.
A. 500oC
B. 900oC
C. 1100oC
D. 1300oC
4 1 kg mass will be equivalent to energy.
A. 9 x 108 J
B. 9 X 1012 J
C. 9 X 1016 J
D. 9 X 1019 J
5 Max planck received noble prize in:
A. 1927
B. 1932
C. 1918
D. 1914
6 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
7 Energy of Black body radiation depends upon
A. Nature of surface of body
B. Nature of material of body
C. Shape and size of body
D. Temperature of the body
8 Compton shift is maximum for scattering angle of photon
A. 0o
B. 90o
C. 180o
D. 45o
9 Maximum Compton shift is observed at.
A. 30oC
B. 90oC
C. 45oC
D. 180oC
10 Potassium Cathodes in photocell emit electrons for a light.
A. Visible
B. Infra red
C. Ultra violet
D. X rays

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  • Ali raza

    Ali raza

    09 Dec 2017

    Helpful

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  • Intikhab

    Intikhab

    11 Aug 2017

    10/17

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  • tayyab

    tayyab

    30 Apr 2016

    good and very helpful for exam preparation

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