Using Huygens principle, show that the angle of incidence is equal to angle of reflection during a plane wave front reflected by a plane surface.

Using Huygens principle, show that the angle of incidence is equal to

1.	Using Huygens principle, show that the angle of incidence is equal to angle of reflection during a plane wave front reflected by a plane surface.
Answer» Solution :Using Huygen.s wave THEORY of light, SHOW that the angle of incidence is equal to angle of reflection in case of reflection of a PLANE wavefront by a plane surface. `AE=BC=vt` The TRIANGLES EAC and BAC are congruent and therefore, the angles i and r (as show in Fig. )would be equal. This is the law of reflection.

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Using Huygens principle, show that the angle of incidence is equal to angle of reflection during a plane wave front reflected by a plane surface.

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