Question

Is the object distance for any lens be positive if we take a virtual object??​

Answer 1

Answer:

Truths for both lenses and mirrors

Image distances are always negative for virtual images and positive for real images. Object distances are always positive.

Answer 2

Answer:

true

Explanation:

In other words, if the image is on the far side of the lens as the object, the image distance is positive and the image is real. If the image and object are on the same side of the lens, the image distance is negative and the image is virtual. For converging mirrors, the focal length is positive.