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rs4orce

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**(a) The index of refraction for violet light in silica flint glass is 1.65, and that for red light is 1.61. What is the**

(b) What is the angular dispersion of visible light with the same angle of incidence? Units of o (degrees)

__angle of deviation__for the red ray passing through a prism of apex angle 58.4o if the angle of incidence is 51.4o? Units of o (degrees)(b) What is the angular dispersion of visible light with the same angle of incidence? Units of o (degrees)

**I am using n1sin(theata1)=n2sin(theata2) with no avail. I broke the equation into its 2 parts, but derived 4.275o (under the impression that angle of deviation=angle of dispersion), to no avail. I've got a 3rd problem which would also be great if someone could take a look, as I believe it is along similar lines to the above, which must mean that I'm making the same mistake on both:**

A light ray is incident normally on one face at 25o-65-90o block of dense flint glass (prism) that immersed in water. Find the exit angle (theata4) on the light ray. n2=1.77, n1= 1.333.

I'm working on a relatively (very) brief time line, so any help would be greatly appreciated. Thanks in advance.

A light ray is incident normally on one face at 25o-65-90o block of dense flint glass (prism) that immersed in water. Find the exit angle (theata4) on the light ray. n2=1.77, n1= 1.333.

I'm working on a relatively (very) brief time line, so any help would be greatly appreciated. Thanks in advance.