A. red → green → blue
B. green → violet → blue
C. blue → red → green
D. blue → green → red

Correct Answer:

Option A – red → green → blue

SEE ALSO  A microscope is focused on a mark on a table, when the mark is covered by a plate of glass 2m thick, the microscope has to be raised 0.67cm for the mark to be once more in focus. Calculate the refractive index.

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