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

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Question # 1

Antiparticle of electron is.

Question # 2

Light of 4.5 eV is incident on a Cesium surface and stopping potential is 0.25 eV, maximum K.E. of emitted electron is.

Question # 3

Potassium Cathodes in photocell emit electrons for a light.

Question # 4

1 kg mass will be equivalent to energy.

Question # 5

When platinum wire is heated, it changes to cherry red at temperature.

Question # 6

The special theory of relativity based on.

Question # 7

Which one of the following paved the way for modern physics

Question # 8

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

Question # 9

The materialization of energy take place in the process of.

Question # 10

Compton effect proves.

Question # 11

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

Question # 12

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

Question # 13

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

Question # 14

The existence of positron in 1928 was predicted by

Question # 15

The energy of photon is givne by

Question # 16

Max planck received noble prize in:

Question # 17

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

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19th Chapter

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 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
2 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
3 In the equation if f2 > then
4 The materialization of energy take place in the process of.
A. Photo electric effect
B. Compton Effect
C. Pair production
D. Annihilationof matter
5 The uncertainty principle was given by
A. De-Broglie
B. Heisenberg
C. Einstein
D. Max Planck
6 The existence of positron in 1928 was predicted by
A. Anderson
B. Dirac
C. Chadwick
D. Plank
7 The special theory of relativity based on.
A. One postulate
B. Two postulates
C. Three postulates
D. Four postulates
8 The mass of an object will be doubled at speed.
A. 2.6 x 108 m/s
B. 1.6 x 108 m/s
C. 2.6 x 107 m/s
D. 3.6 x 107 m/s
9 unit of Plank's constant is same as that of.
A. Acceleration
B. Angular momentum
C. Linear momentum
D. Entropy
10 Platinum wire becomes yellow at a temperature of.
A. 900 oC
B. 1300oC
C. 1600oC
D. 500oC

Test Questions

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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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