Download GTU BE/B.Tech 2019 Winter 7th Sem New 2170312 Medical Optics Question Paper

Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2019 Winter 7th Sem New 2170312 Medical Optics Previous Question Paper

1
Seat No.: ________ Enrolment No.___________

GUJARAT TECHNOLOGICAL UNIVERSITY

BE - SEMESTER ? VII (New) EXAMINATION ? WINTER 2019
Subject Code: 2170312 Date: 03/12/2019

Subject Name: Medical Optics
Time: 10:30 AM TO 01:00 PM Total Marks: 70

Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.

MARKS

Q.1 (a)
Explain Cone of Acceptance and Numerical Aperture.
03
(b)
Explain transverse electromagnetic modes.
04
(c)
Explain snell?s law. Calculate angle of refraction for given
values n1=1.51, n2=1.50, ?1=39?.
07


Q.2 (a)
Draw and explain a simple fiber optic system.
03
(b)
What is wavefront? Brief about Characteristics of wavefront.
Also write equation for speed of light in the material.
04
(c)
Explain operation of LASER with proper schematics. Also
give classification of LASER.
07
OR
(c)
Explain application of LASER in therapy.
07
Q.3 (a)
Explain Micro bends.
03
(b)
What happens to the light if it approaches to the boundary at
an angle less then critical angle? Explain total internal
reflection.
04
(c)
Draw and explain Basic Endoscopic Imaging system.
07
OR
Q.3 (a)
A light ray is traveling in a transparent material of refractive
index 1.51 and approaches a second material of refractive
index 1.50. Calculate the critical angle.
03
(b)
Compare different properties of ordinary light and LASER
light.
04
(c)
Fiber optic Laser system in Neurosurgery
07
Q.4 (a)
Explain types of scattering.
03
(b)
What happens to the light if it approaches to the boundary at
an angle less then critical angle? Explain total internal
reflection.
04
(c)
Explain the process of manufacturing of optical fiber.
07
OR
Q.4 (a)
Write a note on Electromagnetic Spectrum.
03
(b)
Explain LASER lithotripsy.
04
(c)
Explain ophthalmological application of LASER.
07
Q.5 (a)
Explain graded index fiber.
03
(b)
Explain effect of Dispersion on data transmission.
04
(c)
Enlist types of interaction occurs between LASER and tissue.
Explain any two in detail
07
OR
Q.5 (a)
Explain Fiber Optic Laser system in cardiovascular disease.
03
(b)
Explain LASER welding of tissue and LASER coagulation.
04
(c)
Explain Rayleigh scattering and Fresnel reflection.
07

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