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

A positron is an anti particle of.

Question # 2

In the equation if f2 > then

Question # 3

Who explained the photo electric effect.

Question # 4

When the K.E. of photoelectric is zero, the frequency of incident photon is.

Question # 5

The converses of annihilation of matter is:

Question # 6

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

Question # 7

The uncertainty principle was given by

Question # 8

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

Question # 9

The number of electrons emitted depends upon

Question # 10

All motions are

Question # 11

The physical quantity related to photon, that does not change in Compton scattering is.

Question # 12

The value of Stefan is constant is:

Question # 13

Wave nature of particle was given by:

Question # 14

The existence of positron in 1928 was predicted by

Question # 15

Number of electros emitted in photo electric effect depend upon.

Question # 16

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

Question # 17

An electron miroscope emplys which to one of the following particles?

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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 principle regarding the dual nature of light was first discovered by
A. Heisenberg
B. Compton
C. J.J.Thomson
D. De-Broglie
2 Einstein was awarded Nobel prize in physics in
A. 1905
B. 1911
C. 1918
D. 1921
3 If the energy of photon is 10 eV and work function is 5 eV, then the a value of stopping potential will be
A. 50 V
B. 2 V
C. 5 V
D. 15 V
4 Who explained the photo electric effect.
A. Max Plank
B. Einstein
C. Henry
D. Rutherford
5 The unit of work function is
A. Electron volt
B. Ampere
C. Volt cell
D. Hz
6 In the equation if f2 > then
7 A positron is an anti particle of.
A. Proton
B. Electron
C. Neutron
D. Photon
8 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
9 Unit of Stephen's constant is
A. W m K-2
B. W m-2 K-4
C. W m K-4
D. None
10 Platinum wire becomes white at a temperature of.
A. 1600oC
B. 1300oC
C. 1100oC
D. 900oC

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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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