I have a physic question which I am not sure about it.
It says that we have a convergent
mirror with a focal distance of 15 cm. We would like to place an object to get a virtual and straight image and two times bigger than the object. Where should it be?
I am not sure about it. I know that it should be Between the focal distance and the mirror , but do not know how to calculate the distance.
a) do=-7.5 cm
c) do=-22.5 cm
d) do= 22.5 cm
e) do= 10 cm