Question

Two mirrors M, and M, make an angle with line
AB. A point source S is kept at a distance from
the point of intersection of mirrors. A small
hemispherical annular mask is kept close to S so
that no ray emanating from S directly reaches
the screen kept at a distance b from the source.
Interference pattern of rays reflected from M, and
M, is observed on the screen. Find the fringe width
of this interference pattern. 2 = wavelength of
light being emitted by source.
M,
b
Surface
Sc
b
S
hemispherical
annular mask​

Answer 1

Answer:

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Explanation:

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