Different types of rays, Physics

Assignment Help:

1. A very narrow laser beam is shone into a sphere of solid glass that has uniform refractive index n>1 and radius ρ . The beam makes an angle α  in air with the normal to the surface of the sphere.

Sketch the path of the beam in the circular cross-section of the sphere defined by the normal and the beam direction and show all reflected and transmitted rays. Using Snell's Law at each reflection, explain why the beam cannot become a whispering gallery ray propagating around the inner surface of the sphere. 

2.  An asymmetric, multimode, step-profile slab waveguide has a core index of 1.5. The cladding index above the core has value 1.49 and the cladding index below the core has value 1.48. Rays propagate in the core in the x-z plane and make an angle θz relative to the z-axis along the centre of the waveguide.

(a) Determine the range of (positive) values of θz in degrees for which only bound rays will propagate along the waveguide.

(b) How many different types of rays can propagate along the waveguide?

Sketch a typical path for each type of ray.

(c) Determine the values of θz in degrees that delineate between the 3 types of ray paths.


Related Discussions:- Different types of rays

1 volt, 1 Volt : Potential difference among two points will be 1 volt i...

1 Volt : Potential difference among two points will be 1 volt if 1 joule of work is needed to move a +ve charge of Coulumb from 1 point to another.

Charging an electrophorus by induction, Charging an Electrophorus by Induct...

Charging an Electrophorus by Induction Using a Negatively Charged Object A general physics demonstration includes the charging of an aluminum pie plate through the procedure of

Radioactivity, A radioactive substance has a half life of 1 min. If one nuc...

A radioactive substance has a half life of 1 min. If one nuclei decays now , when will be next decay????

Characteristics of resistance, Characteristics of resistance:- Similar ...

Characteristics of resistance:- Similar amount of current passed by each resistance i.e. I = I1 = I2 = I3 = I4 ........ The sum of potential difference across individual res

Loschmidt constant, Loschmidt constant; Loschmidt number; NL: The numb...

Loschmidt constant; Loschmidt number; NL: The number of particles per unit volume of an ideal gas at standard temperature & pressure. It has the value 2.687 19 x 10 25 m -3 .

Parallel and unlike forces, GIve live examples for like and unlike paralle...

GIve live examples for like and unlike parallel forces

Determine a hollow metallic sphere, A hollow METALLIC sphere has an inner r...

A hollow METALLIC sphere has an inner radius A and an outer radius B.  If charge is placed on the inner surface, that is at radius A, where is the charge located after it has c

Heat energy, how heat energy is liberated during respiration?

how heat energy is liberated during respiration?

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd