G oogle is introducing two small but meaningful enhancements to its Lens technology. To start, Chrome and Google app users on iPhone can now draw, highlight or tap on text and images to carry out ...

Draw a ray from the object to the lens that is parallel to the principal axis. Once through the lens, the ray should pass through the principal focus. Draw a ray which passes from the object ...

Draw a ray from the object to the lens that is parallel to the principal axis. Once through the lens, the ray should pass through the principal focus. Draw a ray which passes from the object ...