Second Year Physics Chapter 19 Online MCQ Test for 2nd Year Physics Chapter 19 Dawn of Modern Physics Preparation

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Physics FSC Part 2 Chapter 19 Online MCQ's Test

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Question # 1

Internal frame is a frame is which

Question # 2

De-Broglie waves are associated with

Question # 3

Energy of Black body radiation depends upon

Question # 4

In 1905, the special theory of relativity was proposed by

Question # 5

A block body is an ideal:

Question # 6

Platinum wire becomes yellow at a temperature of.

Question # 7

The existence of positron in 1928 was predicted by

Question # 8

Wave nature of particle was given by:

Question # 9

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

Question # 10

Which is the most refined form of matter.

Question # 11

The principle regarding the dual nature of light was first discovered by

Question # 12

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

Question # 13

The materialization of energy take place in the process of.

Question # 14

Who explained the photo electric effect.

Question # 15

The quantity/factor h/moc has the dimensions of.

Question # 16

In the equation if f2 > then

Question # 17

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

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FSc Part II Physics Chapter 0 Important MCQ's

Sr.# Question Answer
1 The Compton effect is associated with
A. X-rays
B. y-rays
C. Positive rays
D. ß-rays
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 Pair production can take place only when energy of radiation is equal and greater than 1.02 MeV, thus correct option is.
A. X rays
B. Gama rays
C. Heat Radiation
D. Ultraviolet rays
4 Application of wave like nature of particle is
A. Photodiode
B. Optical microscope
C. Electron microscope
D. Compound microscope
5 The special theory of relativity based on.
A. One postulate
B. Two postulates
C. Three postulates
D. Four postulates
6 In the equation if f2 > then
7 When platinum is heated is become dull red at:
A. 900°C
B. 500°C
C. 800°C
D. 1100°C
8 Internal frame is a frame is which
A. 1st law holds
B. 2nd law holds
C. 3rd law holds
D. Kelvin's law holds
9 In 1905, the special theory of relativity was proposed by
A. Einstein
B. Bohr
C. Maxwell
D. De Broglie
10 Photodiode is used for wave nature of.
A. Light
B. Thermal radiation
C. Radi waves
D. Sound waves

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