×
19th Chapter

### 12th Class Physics Chapter 19 Test

Here you can prepare 12th Class Physics Chapter 19 Dawn of Modern Physics Test. Click the button for 100% free full practice test.

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

This online test contains MCQs about following topics:.

- Relative Motion - Frames of Reference - Special Theory of Relativity - Black Body Radiation - Interaction of Electromagnetic Radiation With Matter - Annihilation of Matter - Wave Nature of Particles - Uncertainty Principle

FSC Part 2 Physics Ch 19 Test

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

1 De-Broglie waves are associated with
• A. Moving charged particles only
• B. Moving neutral particles only
• C. All moving particles
• D. All parties whether in motion or at rest
2 The quantity/factor h/m<sub>o</sub>c has the dimensions of.
• A. Length
• B. Time
• C. Mass
• D. Energy
3 Wave nature of light appears in
• A. Pair production
• B. Compton effect
• C. Photo electric
• D. Interference
4 Einstein was awarded Nobel prize in physics in
• A. 1905
• B. 1911
• C. 1918
• D. 1921
5 A perfect absorber must also be perfect
• A. Cavity
• D. None of these
6 The concept of direction is purely
• A. Relative
• B. Absolute
• C. Relative to the motion
• D. None of these
7 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
• D. Ultraviolet rays
8 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.
• A. 4.5 eV
• B. 4.25 eV
• C. 4.75 eV
• D. 0.25 eV
9 If an object moves with speed of light, its mass will be.
• A. Zero
• B. Maximum
• C. Minimum
• D. infinity
10 When platinum wire is heated, it changes to cherry red at temperature.
• A. 500<sup>o</sup>C
• B. 900<sup>o</sup>C
• C. 1100<sup>o</sup>C
• D. 1300<sup>o</sup>C

### Top Scorers of Physics Fsc Part 2 Chapter 8 Online Test

#### Imran

Lahore05 - Sep - 2023

14/17
03 Mins 14 Sec
Z

#### Zubair Ahmed

Lahore10 - Nov - 2023

13/17
05 Mins 18 Sec
K

#### Kashmala Gul

Lahore07 - Nov - 2023

12/17
04 Mins 49 Sec
Z

#### Zubair Ahmed

Lahore10 - Nov - 2023

11/17
03 Mins 14 Sec
U

#### Umme Aiman

Lahore24 - Oct - 2023

10/17
01 Mins 41 Sec

#### Imran

Lahore05 - Sep - 2023

10/17
02 Mins 36 Sec

#### Imran

Lahore05 - Sep - 2023

10/17
03 Mins 18 Sec
R

#### Rohit Dholia

Lahore05 - Nov - 2023

10/17
04 Mins 47 Sec

Sort By:
• S

09 Dec 2017

Like
• I

11 Aug 2017

10/17

Like
• T

#### Tayyab

30 Apr 2016

good and very helpful for exam preparation

Like
X

to continue to ilmkidunya.com

Fill the form. Our admission consultants will call you with admission options.

X

to continue to ilmkidunya.com

X

to continue to ilmkidunya.com

X