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Q. Reading glasses of what power are needed for a person whose near point is 110cm, so that he can read a computer screen at 52cm? Assume a lens-eye distance of 2.0cm.

Q. A person discovers that the 5 ampere fuse in his car's brake light circuit is blown. Not having a spare 5 ampere fuse available, he replaces it with a new 10 ampere fuse. What is likely to happen as he uses the brakes?

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