n transparent slabs of refractive index 1.5 each having thickness 1cm, 2cm, 3cm.......n cm are arranged one over other. A point object is seen through this combination with near perpendicular light. If the shift of object by the combination is 1 cm, then the value of n is?

A) Either 2 or 3

B) 2

C) 3

D) 4

aditya sharma , 7 Years ago

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