A mono chromatic light source of wave le...

A mono chromatic light source of wave length I is placed at a distance R from the mirror as shown and a spherical screen of radius R is at a distance R from the source as shown in the figure and point P is on the sphere nearest to the source.It R is two times the wave length (R=2l) then f'+(p)

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A mono chromatic light source of wave length I is placed at a distance R from the mirror as shown and a spherical screen of radius R is at a distance R from the source as shown in the figure and point P is on the sphere nearest to the source.It R is two times the wave length (R=2l) then f'+(p)

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