Which lens is used in spy holes on doors to check the visitors?
Answers
Answered by
10
Answer:
Conceptually, a peephole is made up of specially arranged convex lenses. It allows the user to see who is on the other side of the door for security reasons. A peephole is fitted with a telescopic fish-eye lens on the broad-end .
Answered by
0
Explanation:
convex lens is used in spy holes on doors to check the visitors .
pls mark it as brainliest(T_T)
Similar questions