What type of reflection does fiber optic technology rely upon?*   A. Regular reflection   B. Diffuse reflection   C. Retroreflection   D. Total internal reflection   my ans: d   5. What will be the arrangement of electromagnetic waves if we will arrange them according to decreasing energy?*   A. Gamma, radio, microwave   B. X-ray, gamma, ultraviolet

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Dispersion of White Light

Snell’s law is a formula that gives a relation between the angle of incidence and angle of refraction and is given as: