Wave OpticsMedium
Question
A circular disc is placed in front of a narrow light source. When observation point is 1 metre from the disc, then the disc covers first half period zone and intensity at this point is I0. The intensity at a point 25cm from the disc will be : Ratio for successive amplitude is given below
Options
A.0.73 I0
B.0.53 I0
C.0.33 I0
D.0.13 I0
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