Question

If the refractive index of meterial of equilateral prism is 1.5,then find the angle of minimum deviation for it.

plz.....plz....plz

answer it....

Answer 1

It is 38 degrees.
I don't know how to prove it theoretically but when done practically the answer is 38 degrees

Answer 2

F2 Equilateral Dispersive Prisms (385 nm - 2 µm)


Transmission data is for a 10 mm thick sample.



F2 is a flint glass that offers excellent performance in the visible and NIR spectral range. It offers a high refractive index and low Abbe number, making it excellent for use in an equilateral dispersive prism. Compared to N-SF11, it offers superior chemical resistance and slightly higher transmission.

Polarization Effects
For p-polarized light (blue line) incident on a dispersing prism at the angle of least deviation, the graph to the right shows that only a small percentage of the p-polarized light is reflected at the surface. Thus, for this polarization, the transmission through a prism fabricated from F2 will be excellent even though there is no AR coating on the surface.

I hope it is helpful for you