Define a wavefront. Using huygens principle, verify the laws of reflection at a plane surface. (b) in a single slit diffraction experiment, the width of the slit is made double the original width. How does this affect the size and intensity of the central diffraction band? Explain. (c) when a tiny circular obstacle is placed in the path of light from a distant source, a bright spot is seen at the centre of the obstacle. Explain why.
Answers
Answered by
0
a wavefront is the locus of points characterized by propagation of positions of identical phase: propagation of a point in 1D, a curve in 2D or a surface in 3D.
Law of Reflection from Huygens' Principle. The figure illustrates Huygens' construction for a narrow, parallel beam of light to prove the law of reflection. Huygens' principle must be modified to accommodate the case in which a wavefront, such as AC, encounters a plane interface, such as XY, at an angle.
Law of Reflection from Huygens' Principle. The figure illustrates Huygens' construction for a narrow, parallel beam of light to prove the law of reflection. Huygens' principle must be modified to accommodate the case in which a wavefront, such as AC, encounters a plane interface, such as XY, at an angle.
Similar questions