CBSE Class 12-science Physics Refraction and Dispersion by Prism

• Ray optics
  
• Show that the angle of deviation will be minimum when a light ray passes through a prism symmetrically. 
• What is a prism?
• What is the difference in refraction through a prism and refraction through a glass slab?
• Calculate the deviation produced by a prism of angle 8 degree, for a material of refractive index 1.5.
• Define dispersion.
• What causes the phenomenon of dispersion?
• Can we combine two prism? If yes what is the purpose?
• Calculate the angular dispersion produced by a prism of angle 6 degree, if the refractive indices of material of prism for blue and green colours are 1.664 and 1.655.
• Define dispersive power and derive its formula.

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