Why is a spectrum formed by a prism and not by a glass slab?
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Dove prism is a type of reflective prism which is used to invert an image. Dove prisms are shaped from a truncated right-angle prism. A beam of light entering one of the sloped faces of the prism undergoes total internal reflection from the inside of the longest (bottom) face and emerges from the opposite sloped face. Images passing through the prism are flipped, and because only one reflection takes place, the image’s handedness is changed to the opposite sense.
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Material:BK7Diameter Tolerance:+0.0/-0.2mmAngle Tolerance:±3 arc minutesFlatness:l/2 @ 632.8nmSurface Quality:60/40Clear Aperture:>80%Bevel:<0.2-0.5mm X 45°Coating:Available upon request
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Hey mate!!!
↪There is dispersion in case of prism. However, in case of rectangular glass slab , after refraction at the two parallel faces of the glass slab , a ray of light emerges in a direction parallel to the direction of the incidence of white light on the slab.
↪There is dispersion in case of prism. However, in case of rectangular glass slab , after refraction at the two parallel faces of the glass slab , a ray of light emerges in a direction parallel to the direction of the incidence of white light on the slab.
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