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9th Chapter

### 11th Class Physics Chapter 9 Test

Here you can prepare 11th Class Physics Chapter 9 Physical Optics Test. Click the button for 100% free full practice test.

## First Year Physics Chapter 9 Online MCQ Test for 1st Year Physics Chapter 9 (Physical Optics)

This online test contains MCQs about following topics:

- Wave Fronts - Huygen's principle - Interferance of Light Waves - Young's Double slit Experiment - Interference in Thin Films - Newton's Rings - Michelson's Interferometer - Diffraction of Light - Diffraction due to a Narrow slit - Diffraction Grating - Diffraction of X-Rays by Crystals - Polarization

ICS Part 1 Physics Ch 9 Test

### First Year Physics Chapter 9 Online MCQ Test for 1st Year Physics Chapter 9 (Physical Optics)

1 In case of point source the shape of wave front is
• A. Circular
• B. Spherical
• C. Elliptical
• D. Square
2 Hygen's principle is used for.
• A. Explain polarization
• B. Locate the wave front
• C. Find the speed of light
• D. Find the index of refraction
3 X-ray diffraction has been very useful in determining the structure of
• A. Hemoglobin
• B. Stars
• C. Galaxies
• D. Stones
4 Oil film floating on water exhibits colours due to
• A. Interference
• B. Diffraction
• C. Polarization
• D. All of these
5 Michelson's interferometer can be used ot find the
• A. Velocity of light
• B. Wavelength of light
• C. Velocity of sound
• D. Wavelength of sound
6 Bending of light around the edges of an obstacle is called.
• A. Refraction
• B. Polarization
• C. Interference
• D. Diffraction
7 The fringe spacing increases if we use.
• A. Yellow light
• B. Green lgiht
• C. Blue light
• D. Red light
8 The centre of Newton's fringe is dark due to.
• A. Destructive interference
• B. Diffraction
• C. Constructive interference
• D. Polarization
9 Newton's rings are formed due to phenomenon of.
• A. Interference
• B. Dispersion
• C. Diffraction
• D. Polarization
10 According to Huygen's principle the points on primary wave front can be considered as
• A. Secondary wavelets
• B. Ray of light
• C. Source of light
• D. None of these

### Top Scorers of 11th Class Part 1 Physics Chapter 9 Test Online

F

#### Farooq Rajpoot

Lahore17 - Mar - 2023

16/17
01 Mins 09 Sec
H

#### Hamna Qaisar

Lahore07 - Apr - 2023

16/17
01 Mins 27 Sec
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#### Rana Khalid Raza

Lahore15 - May - 2023

16/17
02 Mins 22 Sec
R

#### Rana Khalid Raza

Lahore15 - May - 2023

16/17
02 Mins 22 Sec
S

#### Sultan Mehmood

Sargodha06 - Mar - 2023

15/17
22 Sec
F

#### Farooq Rajpoot

Lahore17 - Mar - 2023

15/17
23 Sec
A

#### Asbah Umber

Lahore14 - May - 2023

15/17
01 Mins 21 Sec
H

#### Hamna Qaisar

Lahore07 - Apr - 2023

15/17
01 Mins 57 Sec
A

#### Ali Raza

Lahore23 - May - 2023

15/17
02 Mins 21 Sec
U

#### Uzair Bajwa

Lahore11 - Apr - 2023

15/17
03 Mins 11 Sec
S

#### Sultan Mehmood

Sargodha06 - Mar - 2023

15/17
05 Mins 07 Sec
S

#### Sultan Mehmood

Sargodha06 - Mar - 2023

14/17
23 Sec
S

#### Sultan Mehmood

Sargodha06 - Mar - 2023

14/17
55 Sec
H

#### Hamna Qaisar

Lahore07 - Apr - 2023

14/17
01 Mins 42 Sec
B

#### Bulandi Bulandi

Lahore01 - Apr - 2023

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01 Mins 46 Sec

### Chapterwise Lists

Chapter Name Questions PDF File
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