Question

***PLEASE HELP! TEST TOMORROW!***
An object is placed 10.0 cm in front of a mirror. what type must the mirror be to form an image of the object that is 2.00 m away from the mirror? what is the magnification of the image?

Answer 1

I got -5 as the magnification, and it also asked whether it was virtual or real, and upright or inverted. I said it virtual and upright.. Can anyone tell me if I am right?

Answer 2

What do you understand by "..away from the mirror.." ??

Answer 3

sorry i am not familiar with these type of problems

Answer 4

Its okay @dumbcow

Answer 5

and what do you mean @LastDayWork

Answer 6

i did find this, it may help
http://en.wikipedia.org/wiki/Magnification#Calculating_the_magnification_of_optical_systems

Answer 7

Away from the mirror can imply either side..real and virtual..

Answer 8

@Mashy Can you help here ??

Answer 9

Ok.. first u need to decide if its Convex mirror or Concave mirror..

(its not plain, cause in plain object distance = image distance)
now can u first tell me is it convex or concave? (think properly.. u ll get it..
@LastDayWork.. i hope u know which one it is :P)

Answer 10

XD

Answer 11

its convex right?

Answer 12

why do u think its convex?

Answer 13

draw a general ray diagram for convex.. showing objects and images.. then u ll be able to uderstand..

Answer 14

but it doesnt give you enough information to decide which one it is?

Answer 15

the info is not needed..
only one of them is possible..

just draw a ray diagram.. i am telling.. that ll make u understand!

Answer 16

i drew it and still dont see how it isnt convex

Answer 17

oh wait! is it concave outside?

Answer 18

if u drew it properly..
which distance u see bigger? object distance or image distance ?

Answer 19

this is kinda what the ray diagram is... see where the image is formed..