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 Justine_5420 #1 Posted : Monday, July 27, 2020 2:28:16 PM Rank: MemberGroups: Registered Joined: 5/13/2020Posts: 14Thanks: 0 timesWas thanked: 0 time(s) in 0 post(s) Hello,One of the flashcard question from the physics AAMC questions states:"Suppose a certain far-sighted person can see objects clearly no closer than 300 cm away. What is the minimum distance from a plane mirror such a person must be to see his reflection clearly?"We never really discussed plane mirrors - could someone please explain to me why this distance would be halfed? Back to top User Profile
 INSTR_Faisal_57 #2 Posted : Monday, July 27, 2020 3:40:18 PM Rank: NewbieGroups: Joined: 6/7/2020Posts: 0Thanks: 0 timesWas thanked: 0 time(s) in 0 post(s) Hi Justine,If you stand 1 meter, for example, in front of a plane mirror, the image that you see in the mirror looks like it's 1 meter behind the mirror, for a total of 2 meters.So if someone has the ability to see clearly at 300 cm, then if they were in front of a plane mirror they would have to stand 150 cm infront of the mirror to see their image clearly, as their image would appear to be 300 cm away. Back to top User Profile
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