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Science

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1. It is the science of visible light and how it is used to extend human vision,
a. Physics b. Optics
c. Logic
d. Psychic
2. How many curved mirrors are used in the construction of improvised periscope?

Sagot :

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Answer:

1. B

2. Two

Explanation:

Periscopes need two mirrors, which reflects the image twice and makes it a true image, not a mirror image. (source:G00GLE)

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