A candle is placed 20 cm from the surface of a convex mirror and a plane mirror is also placed so that the virtual images in the two mirrors coincide. If the plane mirror is 12 cm away from the object, what is the focal length of the convex mirror? A candle is placed 20 cm from the surface of a convex mirror and a plane mirror is also placed so that the virtual images in the two mirrors coincide. If the plane mirror is 12 cm away from the object what is the focal length of the convex mirror? November 15, 2020 Category: Cengage JEE Mains Physics by B.M Sharma , Chapter 26 - Geometrical Optics , Facebook Messenger WhatsApp Share this:TwitterFacebook Related