A vessel ABCD of 10 cm width has two small slits S_(1) and S_(2) sealed with identicalglass paltes ofequal thickness . The distance between the slits is 0.8 mm . POQ is the line perpendicular to the plane AB and passingthrough O , the middle point of S_(1) and S_(2) .A monochromaticlight source is kept at S , 40 cm below P and 2m from the vessel to illuminate the slits as shown in fig. The position of the cnetral bright fringe on the other wall CD w.r.t the line OQ.

A vessel ABCD of 10 cm width has two small slits S_(1) and S_(2) seale

1.	A vessel ABCD of 10 cm width has two small slits S_(1) and S_(2) sealed with identicalglass paltes ofequal thickness . The distance between the slits is 0.8 mm . POQ is the line perpendicular to the plane AB and passingthrough O , the middle point of S_(1) and S_(2) .A monochromaticlight source is kept at S , 40 cm below P and 2m from the vessel to illuminate the slits as shown in fig. The position of the cnetral bright fringe on the other wall CD w.r.t the line OQ.
Answer» 4 CM 6 cm 5 cm 2 cm ANSWER :D

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