I am stuck on this question I would appreciate it if any of you can explain it, please don't solve it because I like to do it by myself, I am particularly stuck in the part a to be honest don't know which value to use to work out phase speed
1)A light wave in an isotropic transparent material is described by the expression:
E = E0 { 2 sin[3×10^7(0.5x - 10^8t)] + 5 sin[6×10^7(0.6x – 10^8t)] }
a)What is the phase speed of each component wave?
b)What are the refractive indices experienced by each wave in the material?
c)What name is given to the phenomenon where the refractive index varies with frequency or (vacuum) wavelength?
d)Snell’s law determines the angle of light transmission at the interface between two media, ‘1’ and ‘2’. It may be written as n1 sin?1 = n2 sin?2.
If a light wave with the same properties as that described above entered the material from air along a path at an angle of 50o to the surface normal what would be the angular spread of the light wave in the material?
1)A light wave in an isotropic transparent material is described by the expression:
E = E0 { 2 sin[3×10^7(0.5x - 10^8t)] + 5 sin[6×10^7(0.6x – 10^8t)] }
a)What is the phase speed of each component wave?
b)What are the refractive indices experienced by each wave in the material?
c)What name is given to the phenomenon where the refractive index varies with frequency or (vacuum) wavelength?
d)Snell’s law determines the angle of light transmission at the interface between two media, ‘1’ and ‘2’. It may be written as n1 sin?1 = n2 sin?2.
If a light wave with the same properties as that described above entered the material from air along a path at an angle of 50o to the surface normal what would be the angular spread of the light wave in the material?