A plane wavefront falls on a slit wide. A convex lens of focal length placed behind the slit focusses the light on a screen. What is the linear diameter of second maximum |
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a) |
b) |
c) |
d) |
A plane wavefront falls on a slit wide. A convex lens of focal length placed behind the slit focusses the light on a screen. What is the linear diameter of second maximum |
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a) |
b) |
c) |
d) |