Given the width of aperture = 3 mm and |
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a) |
18 m |
b) |
18 mm |
c) |
18 |
d) |
18 light years |
Given the width of aperture = 3 mm and |
|||||||
a) |
18 m |
b) |
18 mm |
c) |
18 |
d) |
18 light years |