Fsc Part 1 Physics Chapter 9(Physical Optics) Online Questions with Answers Preparations

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Physical optics is a branch of optics. This branch studies interference, diffraction, polarization, and other phenomena.

This Short Question Answer and online test will enable you to understand:

The concept of wavefront and state Huygens principle.

The interface of light and recognize/ explain the colour pattern in films. The effect of rotation of polaroid and polarization.

How plane polarized light is produced and detected.

Describe diffraction at a single slit.

Explain the term diffraction

Describe the formation of Newton’s ring.

Describe the phenomenon of diffraction of X-rays by crystals.

The polarization as a phenomenon associated with transverse waves.

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FSC Part 1 Physics Preparation

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Online Short Questions For Chapter 9 "FSC Part 1 Physics Chapter 9 Short Questions Preparation "

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Physics - FSC Part 1 Physics Chapter 9 Short Questions Preparation

Question # 1

What is the contribution of Michelson to measure the length of standard meter using interferometer?

Ans 1: Michelson measured the length of the standard meter in terms of wavelength of red cadmium light and showed that the standard meter is equal to 1553163.5 wavelengths of this light.

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Prepare Complete Set Wise Questions For Chapter 9 "FSC Part 1 Physics Chapter 9 Short Questions Preparation "

Set 1

10 Questions
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Set 2

10 Questions
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Set 3

10 Questions
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FSC Part 1 Physics Chapter 9 Short Questions Preparation - Set 1

Question # 1

What is the contribution of Michelson to measure the length of standard meter using interferometer?

Ans 1: Michelson measured the length of the standard meter in terms of wavelength of red cadmium light and showed that the standard meter is equal to 1553163.5 wavelengths of this light.

Submit

FSC Part 1 Physics Chapter 9 Short Questions Preparation - Set 2

Question # 1

What is polarization of light?

Ans 1: The phenomenon in which the vibration of waves can be oriented to any one direction, that may be vertical, horizontal, or any other direction is called polarization of light.

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FSC Part 1 Physics Chapter 9 Short Questions Preparation - Set 3

Question # 1

In Young's experiment, one of the slits is covered with blue filter and other red filter, what would be the pattern of light intensity on the screen?

Ans 1: No interference pattern will be observed because blu and red lights are of different wavelengths. So the source of light will not be coherent

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11th Class Physics Chapter 9 Preparation

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First Year Physics Chapter 9 Online Short Questions Preparation for 1st Year Physics Chapter 9 (Physical Optics)

The concept of wavefront and state Huygens principle.

The interface of light and recognize/ explain the colour pattern in films. The effect of rotation of polaroid and polarization.

How plane polarized light is produced and detected.

Describe diffraction at a single slit.

Explain the term diffraction

Describe the formation of Newton’s ring.

Describe the phenomenon of diffraction of X-rays by crystals.

The polarization as a phenomenon associated with transverse waves.

FSC Part 1 Subjects

Online Short Questions For Chapter 9 "FSC Part 1 Physics Chapter 9 Short Questions Preparation "

Physics - FSC Part 1 Physics Chapter 9 Short Questions Preparation

What is the contribution of Michelson to measure the length of standard meter using interferometer?

In Young's experiment, one of the slits is covered with blue filter and other red filter, what would be the pattern of light intensity on the screen?

If white light is incident on a film of irregular thickness at all possible angles,what will be the pattern of interference fringes? Explain your answer.

How can the distance between interference fringes affect by the separation between the slits of young's experiment? Can fringes disappear?

In Newton's rings, Why are the fringes circular?

Write down selective absorption method to obtain plane polarized light from ordinary light.

Define polarization of light.

Why the polaroid sun glasses are better than ordinary sun glasses?

Center of Newton ring is dark. Why? Although thickness of air film is zero.

Can you obtain plane polarized light from un-polarized light? If your answer is yes, write the name of two processes by which plane polarized light is obtained.

Prepare Complete Set Wise Questions For Chapter 9 "FSC Part 1 Physics Chapter 9 Short Questions Preparation "

Set 1

Set 2

Set 3

FSC Part 1 Physics Chapter 9 Short Questions Preparation - Set 1

What is the contribution of Michelson to measure the length of standard meter using interferometer?

In Young's experiment, one of the slits is covered with blue filter and other red filter, what would be the pattern of light intensity on the screen?

If white light is incident on a film of irregular thickness at all possible angles,what will be the pattern of interference fringes? Explain your answer.

How can the distance between interference fringes affect by the separation between the slits of young's experiment? Can fringes disappear?

In Newton's rings, Why are the fringes circular?

Write down selective absorption method to obtain plane polarized light from ordinary light.

Define polarization of light.

Why the polaroid sun glasses are better than ordinary sun glasses?

Center of Newton ring is dark. Why? Although thickness of air film is zero.

Can you obtain plane polarized light from un-polarized light? If your answer is yes, write the name of two processes by which plane polarized light is obtained.

FSC Part 1 Physics Chapter 9 Short Questions Preparation - Set 2

What is polarization of light?

Why the polaroid sun glasses are better than ordinary sun glasses?

Define optical rotation. Give its practical use.

In Newton's rings, Why are the fringes circular?

What condition must be met by interfering beams to observe the phenomena of interference?

Write the names of any four processes to obtain plane polarized beam of light from un-polarized light.

Give the list of two substance which shows optical rotation when they are in solution.

What is Michelson's interferometer? Also write its working principle.

How would you manage to get more orders of spectra using a diffraction grating?

Can visible light produce interference fringes? Explain.

FSC Part 1 Physics Chapter 9 Short Questions Preparation - Set 3

In Young's experiment, one of the slits is covered with blue filter and other red filter, what would be the pattern of light intensity on the screen?

Define wave front and spherical wave front.

How will you increase the fringe width in young's double slit experiment?

In Newton's rings, Why are the fringes circular?

What is polarization of light?

Give the list of two substance which shows optical rotation when they are in solution.

What do you mean by coherent source ? Explain a common method for producing two coherent sources.

Can visible light produce interference fringes? Explain.

How would you distinguish between un-polarizedand plane polarized lights?

Under what conditions two or more sources of light behave as coherent sources?

11th Class Physics Chapter 9 Preparation

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