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

Which is the most refined form of matter.

Question # 2

Anti particle of electron is

Question # 3

When a very high energy modeules such as y radiation interact with matter, the phenomenon arising will be.

Question # 4

The photon with energy greater than 1.02 MeV can interact with matter as.

Question # 5

Antiparticle of electron is.

Question # 6

Internal frame is a frame is which

Question # 7

Compton shift is maximum for scattering angle of photon

Question # 8

The energy of photon is givne by

Question # 9

De-Broglie waves are associated with

Question # 10

The mass of an object will be doubled at speed.

Question # 11

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

Question # 12

A positron is an anti particle of.

Question # 13

A block body is an ideal:

Question # 14

Einstein was awarded Nobel prize in physics in

Question # 15

Maximum Compton shift is observed at.

Question # 16

Compton's effect is associated with

Question # 17

If the kinetic energy of a free electron doubles, its de Broglie wavelength changes by the factor.

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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 Disintegration of photon on striking a nucleus into an electron and positron is known as.
A. Annihilation of matter
B. Compton effect
C. Pair production
D. Photo electric effect
2 Wave nature of particle was given by:
A. Clemensen
B. Louis de Broglie
C. Laster H. Germer
D. Clinton S. Davisson
3 The wavelength associated with the protons moving at speed of 40 m/s is.
A. 7.20 nm
B. 9.02
C. 15.7 nm
D. 17.3 nm
4 The Compton effect is associated with
A. X-rays
B. y-rays
C. Positive rays
D. ß-rays
5 Who explained the photo electric effect.
A. Max Plank
B. Einstein
C. Henry
D. Rutherford
6 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
7 The value of Wien's constant:
A. 2.9x10-3mk
B. 2.19x10-7mk
C. 3.18 x106 km-1
D. 6.21 x 10-9m2wk3
8 Unit of Stephen's constant is
A. W m K-2
B. W m-2 K-4
C. W m K-4
D. None
9 Platinum wire becomes white at a temperature of.
A. 1600oC
B. 1300oC
C. 1100oC
D. 900oC
10 The most refined form of matter is:
A. Smoke
B. Light
C. Ice
D. Fog

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