1. What is the difference between Fresnel and Fraunhofer diffraction? Mark:5 (Brief out the differences)

2. Explain diffraction by a single slit. Find the amplitude, phase angle, and intensity at any point(Include all relevant theiries, explanations , equations and diagrams ) Mark:8

3.Discuss Fresnel's biprism experiment. (In the answe mention what is the experiment about, relevant theory, diagrams and equations, findings) Mark:8