A point object is placed at a distance of `20 cm` from a thin plano-convex lens of focal length `15 cm(mu=1.5).` The curved surface is silvered. The image will form at

A point object is placed at a distance of 20cm from a thin plano-convex lens of focal length 15cm If the plane surface is silvered.the image will form at

A point object is placed at a distance of 20 cm from a thin plano-concex lens of focal length 15 cm . The plane surface of the lens is now silvered. The image created by the is at :

A point object is placed at distance of 20 cm from a thin plane - convex lens of focal length 15 cm . The plane surface of the lens is now silvered . The image created by the system is :-

A point object is placed at distance of 20 cm from a thin plane - convex lens of focal length 15 cm . The plane surface of the lens is now silvered . The image created by the system is :-

A point object is placed at a distance of 20 cmA point object is placed at distance of 20cm from a thin plano convex lens of focal length 15cm.The plane surface of the lens is now silvered. The image created by the system is at .