2429-Physical & Geometrical Optics_VUsolutions.com

							      ALLAMA IQBAL OPEN UNIVERSITY, ISLAMABAD
                    (Department of Home and Health Sciences)


Course: Physical & Geometrical Optics (2429)                   Semester: Autumn, 2011
Level: B. Sc                                                                Credit: Half


                                 CONTENT LIST

Dear Student,


You will find the following material in your packet.


      1.    Study Guide (Unit 1-9)
      2.    Theory Assignments (1-2)
      3.    Practical Assignment (01)
      4.    Assignments forms (03 sets)
      5.    Schedule for submitting assignments, Practical and tutorials meetings.
      6.    The Ophthalmic Assistant (7th edition) (As allied materials)


Note: -     If any one item from the above-mentioned content list is missing from your
            study packet, kindly contact:




                                     Mailing Officer
                                     Mailing Section
                            Services and Operational Block
                             Allama Iqbal Open University
                                 Sector H-8 Islamabad.
                                  Ph: 051–9057611–12
         ALLAMA IQBAL OPEN UNIVERSITY, ISLAMABAD
                        (Department of Home and Health Sciences)
[

                                       WARNING
    1.   PLAGIARISM OR HIRING OF GHOST WRITER(S) FOR
         SOLVING THE ASSIGNMENT(S) WILL DEBAR THE STUDENT
         FROM AWARD OF DEGREE/CERTIFICATE, IF FOUND AT ANY
         STAGE.
    2.   SUBMITTING ASSIGNMENTS BORROWED OR STOLEN FROM
         OTHER(S) AS ONE’S OWN WILL BE PENALIZED AS DEFINED
         IN “AIOU PLAGIARISM POLICY”.
Course: Physical & Geometrical Optics (2429)                     Semester: Autumn, 2011
Level: B. Sc.                                                          Total Marks: 100
                                                                         Pass Marks: 40
                                ASSIGNMENT No. 1
                                         (Units 1-4)
                                  PART-A (Marks: 25)
Mark as True or False.                                                             (25)
1.  Lasers helpful in Glaucoma include:
    a)    Diode Laser.
    b)    Yag Laser.
    c)    Frequency doubled Yag Laser.
    d)    Eximer Laser.
    e)    Argon Laser.
2.       Scattering of light in eyes can result from:
         a)    Flare.
         b)    Corneal opacity.
         c)    Corneal oedema.
         d)    Cataract.
         e)    Optic nerve pathology.
3.       For constructive interference, light rays need to be:
         a)   In same direction.
         b)   Have same wave length.
         c)   Have same amplitude.
         d)   Have same frequency.
         e)   Incoherent.
4.       Interference can result in:
         a)    High frequency.
         b)    Lower frequency.
         c)    Higher amplitude.
         d)    Longer wave length.
         e)    Lower amplitude.
                                              2
5.   Particle theory explains for following properties:
     a)    Reflection.
     b)    Energy transfer.
     c)    Interference.
     d)    Diffraction.
     e)    Refraction.

                                PART-B (Marks: 75)
Q.1 Explain the wave theory of light.                                     (15)
Q.2 Describe different types of Interference.                             (15)
Q.3 Define and explain illuminance & luminance with examples.             (15)
Q.4 Discuss different units used in radiometry & photometry.              (15)
Q.5 Write short notes on:                                                 (15)
         Diffraction.
         Coherence.

                             ASSIGNMENT No. 2
                                        (Units 5-9)
Total Marks: 100                                                Pass Marks: 40
                                PART-A (Marks: 25)
Mark as True or False.                                                    (25)
1.  Toric Lenses:
    a)    Have cylindrical components.
    b)    Have a spherical components.
    c)    Have a point focus.
    d)    Have an axis.
    e)    Steep meridian is called base curve.
2.   Prisms:
     a)   Can diverge light.
     b)   Can deviate light.
     c)   Can converge light.
     d)   Can refract light.
     e)   Can reflect light.
3.   Magnification is:
     a)  Very useful.
     b)  Always desirable.
     c)  Caused by concave lenses.
     d)  Caused by convex lenses.
     e)  Caused by toric lenses.
                                            3
4.    A converging lens can be:
      a)   Biconvex.
      b)   Concavo convex.
      c)   Plano concave.
      d)   Biconcave.
      e)   Plano convex.
5.    Refraction of light depends on:
      a)   Incident angle.
      b)   Shape of lens.
      c)   Refractive index of the refracting meridian.
      d)   Surface of the mirror.
      e)   Refractive index of the incident medium.

                                  PART-B (Marks: 75)
Q.1 What are the laws of reflection? Explain reflection from different types of mirrors. (15)
Q.2 What is refraction of light? Explain refraction from prisms with the help of a
    diagram.                                                                  (15)
Q.3 Define total internal reflection. Explain the phenomenon of total internal reflection. (15)
Q.4 Describe the optical system of an eye with the help of a diagram.                     (15)
Q.5 Write short notes on:                                                                 (15)
         Back vertex power.
         Magnification.

                                    PRACTICALS
Q.1 Draw labeled optical diagrams to show.                                               (150)
        Wave theory of light.
        Interference of light.
        Diffraction.
        Laws of reflection.
        Laws of refraction.
        Reflection from spherical & parabolic mirrors.
        Critical angle.
        Cylindrical lenses.
        Toric lenses.
        Prisms.
Q.2 Viva Voce                                                                             (50)
      Total Marks:                                                                       (200)

                                              4