Question

a candle is located 12 cm from a concave mirror. The focal point of the mirror is 3.0 cm from the mirror, where is the image located?

Answer 1

v = -4 cm

Step-by-step explanation:

We have,

Distance between candle and the concave mirror, u = -12 cm

Focal length of the mirror is, f = -3 cm

It is required to find the distance from the distance where image is located. Using mirror's formula to find it:

`(1)/(f)=(1)/(u)+(1)/(v)`

v is image distance

`(1)/(v)=(1)/(f)-(1)/(u)\\\\(1)/(v)=(1)/((-3))-(1)/((-12))\\\\v=-4\ cm`

So, the image will formed at a distance of 4 cm.