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

Einstein photoelectric equation is

Question # 2

A perfect absorber must also be perfect

Question # 3

When platinum is it becomes orange at

Question # 4

The energy of the photon of wavelength 500 nm is.

Question # 5

Application of wave like nature of particle is

Question # 6

In the equation if f2 > then

Question # 7

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

Question # 8

The unit of Plank's constant 'h' is.

Question # 9

If an object moves with speed of light, its mass will be.

Question # 10

The unit for Plank's constant is:

Question # 11

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

Question # 12

Albert Einstein got noble prize for service in:

Question # 13

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

Question # 14

The maximum kinetic energy of emitted photo electrons depends upon.

Question # 15

Platinum wire becomes yellow at a temperature of.

Question # 16

Disintegration of photon on striking a nucleus into an electron and positron is known as.

Question # 17

Antiparticle of electron is.

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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 If an object moves with speed of light, its mass will be.
A. Zero
B. Maximum
C. Minimum
D. infinity
2 When a very high energy modeules such as y radiation interact with matter, the phenomenon arising will be.
A. Photoelectric effect
B. Compton effect
C. Pair production
D. Annihilation of matter
3 Using relativistic effects the location of an air craft after an hour fight can be predicated about
A. 20 m
B. 50 m
C. 760 m
D. 780 m
4 In 1905, the special theory of relativity was proposed by
A. Einstein
B. Bohr
C. Maxwell
D. De Broglie
5 Pair production occurs only when energy of photon is at least equal in:
A. 1.02keV
B. 1.02 eV
C. 1.02 MeV
D. 1.02 GeV
6 A positron is an anti particle of.
A. Proton
B. Electron
C. Neutron
D. Photon
7 The photon with energy greater than 1.02 MeV can interact with matter as.
A. Photoelectric effect
B. Compton effect
C. Pair production
D. annihilation of matter
8 Platinum wire becomes white at a temperature of.
A. 1600oC
B. 1300oC
C. 1100oC
D. 900oC
9 The existence of positron was discovered in:
A. 1929
B. 1928
C. 1931
D. 1933
10 Unit of Stephen's constant is
A. W m K-2
B. W m-2 K-4
C. W m K-4
D. None

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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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