RGUHS BSc Perfusion Technology Last 10 Years 2012-2022 Previous Question Papers|| Rajiv Gandhi University of Health Sciences
Physical and Principles of Lighting, Geometric Optics
Section B: Geometric Optics (40 Marks)
(Revised Scheme - 3)
Q.P. Code : 3106
Draw neat labeled diagrams wherever necessary
(Note : Both QP Codes 3105 and 3106 are to be answered within total duration of 3 hours)
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Rajiv Gandhi University of Health Sciences, Karnataka
I year B.Sc. Optometry Degree Examination - OCT-2019
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Time: 3 Hours Max. Marks: 80 MarksPhysical and Principles of Lighting, Geometric Optics
Section B: Geometric Optics (40 Marks)
(Revised Scheme - 3)
Q.P. Code : 3106
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Your answers should be specific to the questions askedDraw neat labeled diagrams wherever necessary
(Note : Both QP Codes 3105 and 3106 are to be answered within total duration of 3 hours)
LONG ESSAYS (Answer Any two) 2 x 10 = 20 Marks
- Deduce the prism formula and the expression for the deviation produced by a thin prism?
- Obtain the expression for equivalent focal length of two lenses kept (a) in contact. (b) Separated.
- Explain the principle of a laser. Describe a He-Ne laser. Mention one use of the same
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SHORT ESSAYS (Answer Any Two) 2 x5 = 10 Marks
- What is dispersive power of a prism? Obtain the condition for combination of two thin prisms to produce dispersion without deviation.
- The magnification produced by a convex lens was found to be twice as great when the object is 20cm from it, as when it was 30cm from it. Calculate the focal length of the lens.
- Light of wavelength 4800Å is incident on a Surface of photo emissive metal of work function 1.05 eV. Calculate (I) energy of the incident photon and (ii) the maximum kinetic energy of the ejected photoelectrons. h=6.625 x 10-34 J.s. e=1.6 x 10-19C. c=3x108m.s-1.
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SHORT ANSWERS 5 x 2 = 10 Marks
- What is an ophthalmic prism? Mention its use in optometry.
- Write the expressions for resolving power and dispersive power of a grating, explaining the symbols.
- Mention the uses of spherical mirrors.
- State the conditions for total internal reflection.
- What is the significance of velocity of light?
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