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

If you are a student you must be aware of the fact that the objective part of paper plays an important role to attain a percentage which could be reliable to get admission in the medical field. The student of FSC has great news that you have a great place where you can prepare all your subjects online we are proudly informing that any student of Fsc, you can follow ilmkidunya.com if you are facing any problem or difficulty related to your annual examination. Now you can prepare your objective paper from ilmkidunya.com by taking online MCQs and Short Question and Answers session of each chapter separately. This online Short question Answer session is developed to make students ready for final examinations. It is the efforts of our hardworking and experienced teachers who have made it possible for all the students to take this online session of short questions with answers of chapter 6 (Physical Optics) to prepare themselves for the last war of exams.

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 "

    Try The Short Questions For 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 do you mean by coherent source ? Explain a common method for producing two coherent sources.

    • Ans 1: The monochromatic sources of light which emit waves, having a constant phase difference are called coherent sources.
      A common method of producing two coherent light beams is to use a monochromatic source to illuminate a screen containing two small holes, usually in the shape of slits. The light emerging from the two slits is coherent because a single source produces the original beam and two slits serve only too split it into two parts.
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    Prepare Complete Set Wise Questions For Chapter 9 "FSC Part 1 Physics Chapter 9 Short Questions Preparation "

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

    Question # 1

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

    • Ans 1: The monochromatic sources of light which emit waves, having a constant phase difference are called coherent sources.
      A common method of producing two coherent light beams is to use a monochromatic source to illuminate a screen containing two small holes, usually in the shape of slits. The light emerging from the two slits is coherent because a single source produces the original beam and two slits serve only too split it into two parts.
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    FSC Part 1 Physics Chapter 9 Short Questions Preparation - Set 2

    Question # 1

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

    • Ans 1: Selective Absorption: The selective absorption method is the most common method to obtain plane polarized light by using certain types of materials called dichroic substances. Theses materials transmit only those waves.Whose vibration are parallel to a particular direction and will absorb those waves vibrations are in other directions. One such commercial polarizing material is a polaroid.
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    FSC Part 1 Physics Chapter 9 Short Questions Preparation - Set 3

    Question # 1

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

    • Ans 1: The thickness of the air film between plano-convex lens and plane glass plate is almost zero at the point of contact "o" and gradually increases as we proceed towards the periphery of the lens. Thus, points where the thickness of air film is constant will lie on a circle with "o" as centre. That is why circular fringes are produced.
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    11th Class Physics Chapter 9 Preparation

    Here you can prepare 11th Class Physics Chapter 9(Physical Optics). Click the button for 100% free full Preparation.

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