com out Ctrl Minus Tactive muta vi glass An equiconvex lens of focal length 10 cm in air and R I 3 2 is put at a small opening

Question

com out Ctrl Minus Tactive muta vi glass An equiconvex lens of focal length 10 cm in air and R I 3 2 is put at a small opening on a tube of length 1m fully filled with liquid of R I 4 3 A concave mirror of radius of curvature 20 cm is cut into two halves M and M and placed at the end of the tube M and M are placed such that their principal axes AB and CD respectively are separated by 1 mm each from the principal axis of the lens A slit S placed in air illuminates the lens with light of frequency 7 5 x 10 4 Hz The light reflected from M and M forms interference pattern on the left end EF of the tube O is an opaque substance to cover the hole left by M and M Width of the fringes on EF is xx 10 um Find the value ofx E a 5m b 3m c 6m a A S 20cm A C O MIB Imm Imm D M

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