Fresnel Bi-Prism set-up illustrates about the phenomenon of interference of light with the help of Bi-Prism Expt., we can understand
the concept of interference, image formation & the width of the fringes
Optically true, precision ground stainless jaws, spring action for opening of jaws eliminated to ensure original accuracy even after prolonged use. Jaws open uniformly all along through a milled head. Jaw alignment tested for optical accuracy. Made for a lifetime of trouble-free use.
Bi-Prism Holder has the fine radial motion by a fine pitch screw.
Double convex lens 2” of FL 10cm is mounted in an aluminium frame with 3 inch long stem of 9.5mm diameter. The said conversing lens is used for condensing the monochromatic sodium light
Travel 0-15mm with precision micrometer. Least count 0.01mm. Beauty of said micrometer eye piece is that we use special 15X Ramsden eyepiece to increase magnification & one can easily take the reading between two virtual lines