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

Platinum wire becomes yellow at a temperature of.

Question # 2

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

Question # 3

Einstein photoelectric equation is

Question # 4

Which one of the following paved the way for modern physics

Question # 5

The maximum kinetic energy of emitted photo electrons depends upon.

Question # 6

The principle regarding the dual nature of light was first discovered by

Question # 7

Pair production can take place only when energy of radiation is equal and greater than 1.02 MeV, thus correct option is.

Question # 8

The unit of work function is

Question # 9

Photodiode is used for wave nature of.

Question # 10

Wave nature of light appears in

Question # 11

The value of Stefan is constant is:

Question # 12

Internal frame is a frame is which

Question # 13

All motions are

Question # 14

In an nihilation emitted photons moves in opposite directions to conserve.

Question # 15

The concept of direction is purely

Question # 16

Pair production occurs only when energy of photon is at least equal in:

Question # 17

The numerical value of Compton wavelength is equal to

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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 Wave nature of particle was given by:
A. Clemensen
B. Louis de Broglie
C. Laster H. Germer
D. Clinton S. Davisson
2 The uncertainty principle was given by
A. De-Broglie
B. Heisenberg
C. Einstein
D. Max Planck
3 The position has charge which is in magnitude equal to the charge on
A. Electron
B. Proton
C. β particle
D. All
4 Anti particle of electron is
A. Proton
B. Photon
C. Neutron
D. Positron
5 In an nihilation emitted photons moves in opposite directions to conserve.
A. Mass
B. Charge
C. Energy
D. Momentum
6 The unit for Plank's constant is:
A. Js-1
B. Jm
C. Js 
D. Jm2
7 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
8 Einstein photoelectric equation is
D. None of these
9 The number of electrons emitted depends upon
A. Colour of target surface
B. Shape of surface
C. Frequency of incident light
D. Intensity of incident light
10 In the equation if f2 > then

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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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