Two coherent monochromatic light beams of of intensities I and 4I are superposed. The maximum and minimum intensities in the resulting beam are

Two coherent monochromatic light beams of of intensities I and 4I are

1.	Two coherent monochromatic light beams of of intensities I and 4I are superposed. The maximum and minimum intensities in the resulting beam are
Answer» 5I and I 5I and 3I I and I 9I and 3I Solution :Since `I_(R)=I_(1)+I_(2)+2sqrt(I_(1)I_(2))cosphi` `THEREFORE I_(max)=I+4I+2sqrt(I4I)(1)=9I and I_("min")=I+4I+2sqrt(I4I)(-1)=I`.

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Two coherent monochromatic light beams of of intensities I and 4I are superposed. The maximum and minimum intensities in the resulting beam are

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