An illuminated point object is placed in front of an equi-convex lens of refractive index $$\mu=1.5$$ and focal length $$f=40\ \text{cm}$$, at a distance of $$u=1.20\ \text{m}$$ in front of the lens on its principal axis. Water with $$\mu=\frac43$$ fills the space behind the lens up to a distance of $$40\ \text{cm}$$ from the lens. The final image is formed on the principal axis beyond the lens at a distance $$v$$ from the lens. The value of $$v$$ and the nature of image are