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

00:00
Question # 1

The value of Stefan is constant is:

Question # 2

A perfect absorber must also be perfect

Question # 3

In Compton effect the photon behaves as a.

Question # 4

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

Question # 5

Application of wave like nature of particle is

Question # 6

The photoelectric effect predicts that light is made of

Question # 7

Unit of Stephen's constant is

Question # 8

In 1905, the special theory of relativity was proposed by

Question # 9

A positron is an anti particle of.

Question # 10

In the equation if f2 > then

Question # 11

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

Question # 12

The existence of positron was discovered in:

Question # 13

Photodiode is used for wave nature of.

Question # 14

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

Question # 15

The converses of annihilation of matter is:

Question # 16

When platinum is it becomes orange at

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 Physics Chapter 0 Important MCQ's

Sr.# Question Answer
1 Einstein was awarded Nobel prize in physics in
A. 1905
B. 1911
C. 1918
D. 1921
2 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
3 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
4 All motions are
A. Absolute
B. Uniform
C. Relative
D. Variable
5 The stopping potential for a certain metal is 10 volts. Thus work function for the cathode is.
A. 10 J
B. 1.6 X 10-18 J
C. 1.6 X 10-19 J
D. 1.6 X 1030 J
6 The unit for Plank's constant is:
A. Js-1
B. Jm
C. Js 
D. Jm2
7 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
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 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
10 Anti particle of electron is
A. Proton
B. Photon
C. Neutron
D. Positron

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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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