Multiple Choice
Binoculars and microscopes are frequently made with coated optics by adding a thin layer of transparent material to the lens surface as shown. One wants: 
A) constructive interference between waves 1 and 2
B) destructive interference between waves 3 and 4
C) constructive interference between 3 and 4
D) the coating to be more transparent than the lens
E) the speed of light in the coating to be less than that in the lens
Correct Answer:
Verified
Correct Answer:
Verified
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