An object is placed at a distance of 12 cm from a convex lens. A convex mirror of focal length 15 cm is placed on other side of lens at 8 cm as shown in the figure. Image of object coincides with the

Question

An object is placed at a distance of 12 cm from a convex lens. A convex mirror of focal length 15 cm is placed on other side of lens at 8 cm as shown in the figure. Image of object coincides with the object. When the convex mirror is removed, a real and inverted image is formed at a position. The distance of the image from the object will be $____$ (cm)

TestHub · Accepted Answer

With the convex mirror present, impose self-coincidence after lens-mirror-lens traversal to find the lens focal length.

After removing the mirror, use the thin-lens formula with object distance 12 cm.

The real image lies 50 cm from the object.

Physics - Geometrical Optics Question with Solution | TestHub

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