2007-04-24 05:51:03 · 8 answers · asked by Anonymous in Science & Mathematics ➔ Physics
Concave mirror.
2007-04-24 05:53:34 · answer #1 · answered by Anonymous · 2⤊ 0⤋
some thing like 27 megawatts of capacity from Sirius hits the full Earth. A 10km mirror has a close-by decrease than a million millionth of that of Earth. So, the capacity concentrated by that mirror could be purely around sixteen or 17 watts. A 4" magnifying glass supplies approximately 40 4 watts of capacity from the sunlight. So, you be the choose on no count if that good sized mirror will artwork...
2016-12-16 14:17:11 · answer #2 · answered by ? 4 · 0⤊ 0⤋
A large concave mirror with long focal length and a surface fitting part of a paraboloid.
2007-04-24 05:55:36 · answer #3 · answered by Anonymous · 1⤊ 0⤋
You can use a magnifying glass which is made up of concave mirror.
Magnifying glass is best suited for this type of work. I have done it many times.
2007-04-24 09:43:28 · answer #4 · answered by Napster 2 · 0⤊ 1⤋
Convex for mirror and concave if it were a lens.
2007-04-24 07:04:15 · answer #5 · answered by SAREK 3 · 0⤊ 1⤋
not concave but convex convex lens is the right answer
2007-04-24 05:55:44 · answer #6 · answered by Zeed 1 · 0⤊ 2⤋
mirror?
haha
how can mirror do this? it wud reflect light wudnt it?
well it is lens
er.....i dont know if concave or convex...but
a magnifying glass wud do
2007-04-24 06:29:16 · answer #7 · answered by Deranged Soul.. 2 · 0⤊ 3⤋
true that no mirror can burn paper okkkkk
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2014-03-29 01:45:51 · answer #8 · answered by Kumbulani 1 · 0⤊ 0⤋