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

The emission of electrons from metal surface when exposed to light is called:

Question # 2

Potassium Cathodes in photocell emit electrons for a light.

Question # 3

By modern system of NAVSTAR, the speed any where on the earth can be determined to accuracy about.

Question # 4

The most refined form of matter is:

Question # 5

When platinum is heated is become dull red at:

Question # 6

The energy of photon is givne by

Question # 7

Albert Einstein got noble prize for service in:

Question # 8

The concept of direction is purely

Question # 9

The materialization of energy take place in the process of.

Question # 10

Compton shift is maximum for scattering angle of photon

Question # 11

Wave nature of particle was given by:

Question # 12

The existence of positron in 1928 was predicted by

Question # 13

Using relativistic effects the location of an air craft after an hour fight can be predicated about

Question # 14

The uncertainty principle was given by

Question # 15

The dimensions of Plank's constant is same as that of.

Question # 16

If an object moves with speed of light, its mass will be.

Question # 17

Maximum Compton shift is observed at.

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FSC Part 2 Physics Chapter 19 Online Test MCQ's

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FSc Part II Class Physics Chapter 0 Important MCQ's

Sr.# Question Answer
1 Albert Einstein got noble prize in:
A. 1926
B. 1921
C. 1918
D. 1931
2 Maximum Compton shift is observed at.
A. 30oC
B. 90oC
C. 45oC
D. 180oC
3 A positron is an anti particle of.
A. Proton
B. Electron
C. Neutron
D. Photon
4 The minimum energy required for occurrence of pair production is:
A. 1.022eV
B. 1.02keV
C. 1.02Me.V
D. 1.04MeV
5 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
6 Unit of Stephen's constant is
A. W m K-2
B. W m-2 K-4
C. W m K-4
D. None
7 Using relativistic effects the location of an air craft after an hour fight can be predicated about
A. 20 m
B. 50 m
C. 760 m
D. 780 m
8 The value of Stefan is constant is:
A. 4.57 x 10-8 m2k2
B. 5.67 x10-8 wm-2k-4
C. 6.67x 10-11 wm2k4
D. 7.45 x  10-9 m2 wk3
9 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
10 Application of wave like nature of particle is
A. Photodiode
B. Optical microscope
C. Electron microscope
D. Compound microscope

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