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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MCQ's Test For Chapter 0 "Physics FSC Part 2 Chapter 19 Online MCQ's Test"

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Physics FSC Part 2 Chapter 19 Online MCQ's Test

00:00
Question # 1

Platinum wire becomes white at a temperature of.

Question # 2

We can never accurately describes all aspects of sbatomic particles simulatanously. It is correct according to:

Question # 3

Eintein's Photoelectric equation is Ek= hf -∅ in this equation E1, refers to:

Question # 4

In 1905, the special theory of relativity was proposed by

Question # 5

Compton's effect is associated with

Question # 6

Einstein photoelectric equation is

Question # 7

The wavelength associated with the protons moving at speed of 40 m/s is.

Question # 8

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

Question # 9

Photodiode is used for wave nature of.

Question # 10

Minimum energy needed to escape an electron  ofrm metal surface is called:

Question # 11

A positron is an anti particle of.

Question # 12

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

Question # 13

The value of Wien's constant:

Question # 14

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

Question # 15

Max planck received noble prize in:

Question # 16

Which one of the following paved the way for modern physics

Question # 17

A positron is an anti particle of.

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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 The minimum frequency needed to emit an electron form metal surface is called:
A. Work function
B. Threshold frequency
C. Quanta frequency
D. All of above
3 Energy of Black body radiation depends upon
A. Nature of surface of body
B. Nature of material of body
C. Shape and size of body
D. Temperature of the body
4 The uncertainty principle was given by
A. De-Broglie
B. Heisenberg
C. Einstein
D. Max Planck
5 Which one of the following physical quantities change with relativistic speed?
A. Length
B. Time
C. Mass
D. All of above
6 If the kinetic energy of a free electron doubles, its de Broglie wavelength changes by the factor.
A. 2
B. 1/2
C. 2
D. 1/2
7 1 kg mass will be equivalent to energy.
A. 9 x 108 J
B. 9 X 1012 J
C. 9 X 1016 J
D. 9 X 1019 J
8 In 1905, the special theory of relativity was proposed by
A. Einstein
B. Bohr
C. Maxwell
D. De Broglie
9 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
10 The unit of work function is
A. Electron volt
B. Ampere
C. Volt cell
D. Hz

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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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