# A question that has been puzzling me for agesWatch

#1
Hi folks,

If you were to stand 5 metres from a mirror and look at your reflection - how far are you looking? 5 metres? Or 10 metres?

*Strokes chin*
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10 years ago
#2
10
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10 years ago
#3
(Original post by Oddball)
Hi folks,

If you were to stand 5 metres from a mirror and look at your reflection - how far are you looking? 5 metres? Or 10 metres?

*Strokes chin*
That was on a entrance exam..i remember reading it!!
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10 years ago
#4
(Original post by The_Goose)
10
No. 5.
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10 years ago
#5
5.
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10 years ago
#6
Youre surely 'looking' 5 metres, as the image inside the mirror is virtual, but it appears as if you are looking 10 metres.
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10 years ago
#7
(Original post by fps_cam)
Youre surely 'looking' 5 metres, as the image inside the mirror is virtual, but it appears as if you are looking 10 metres.
Indeed.
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10 years ago
#8
7.5kg
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10 years ago
#9
The image of an object in a mirror appears to be as far behind the mirror as the object is in front.

So it's 10.
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10 years ago
#10
well yea your 5 meter from the mirror, and the image of your reflection but you are esential 10 meters from yourself if you were in the mirror
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10 years ago
#11
the mirror is 5 meters away, but if you focus on your reflected image you're looking 10 meters away. i remeber at the optician i was looking at the lights in a mirror on the other side of the room, do they not do this so that you're looking at a distance twice the lenght of the room?
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10 years ago
#12
5 metres. it's not 5 metres and another 5 metres -- it's the same 5 metres twice.
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#13
(Original post by kam_007)
That was on a entrance exam..i remember reading it!!
That's not where I got it from, but it's a good question, there's a lot of disagreement here...!
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10 years ago
#14
5 metres. it's not 5 metres and another 5 metres -- it's the same 5 metres twice.
Lol. So you're looking 10 metres away.
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10 years ago
#15
(Original post by Inside)
Lol. So you're looking 10 metres away.
no... that's like saying that giving you 2 cars would get you to work twice as fast.
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10 years ago
#16
(Original post by Inside)
Lol. So you're looking 10 metres away.
Nooooooo that's what the mirror want's you to think, dont listen to the evil, shiny thing!

The light travels 5m away from your body, and 5m back, so 10m. But the mirror is 5m away, and your looking at the surface of the mirror, so your looking 5m!
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10 years ago
#17
(Original post by luk333)
Nooooooo that's what the mirror want's you to think, dont listen to the evil, shiny thing!

The light travels 5m away from your body, and 5m back, so 10m. But the mirror is 5m away, and your looking at the surface of the mirror, so your looking 5m!
Yeah I see what you mean now Its shiny loveliness caught me out.
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10 years ago
#18
If you were to focus a camera lens, i do believe it would be 10m.
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#19
(Original post by luk333)
The light travels 5m away from your body, and 5m back, so 10m. But the mirror is 5m away, and your looking at the surface of the mirror, so your looking 5m!
This is what I beleive to be true, or at any rate it's what I beleive is true.

Light is making its own way to the mirror from reflections off objects in the room, yes? I guess then, the focal point of your eye is the mirror. Which is 5m away.
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10 years ago
#20
The virtual image created is (I think) 10m away. The key word, however, is 'virtual'.
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