A system illustrated in Fig. 5.12 consists of two coherent point sources 1 and 2 located in

Question:

A system illustrated in Fig. 5.12 consists of two coherent point sources 1 and 2 located in a certain plane so that their dipole moments are oriented at right angles to that plane. The sources are separated by a distance d, the radiation wavelength is equal to λ. Taking into account that the oscillations of source 2 lag in phase behind the oscillations of source 1 by ф (ф (a) The angles 0 at which the radiation intensity is maximum;
(b) The conditions under which the radiation intensity in the direction 0 = n is maximum and in the opposite direction, minimum.

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