Refer to diagram 5. An object stands at distance d1 = 61 cm from a convex lens of focal length f= 15.9 cm; a plane mirror is distance d2 = 77.5 cm behind the lens. The lens creates a real image of Harry in front of the mirror. The mirror creates two virtual images: - an image of the object itself - an image of the lens image reflected in the mirror. Find the distance, in cm, between these two images created by the mirror. (This quantity should be positive!)

Refer to diagram 5. An object stands at distance d1 = 61 cm from a convex lens of focal length f= 15.9 cm; a plane mirror is distance d2 = 77.5 cm behind the lens. The lens creates a real image of Harry in front of the mirror. The mirror creates two virtual images: - an image of the object itself - an image of the lens image reflected in the mirror. Find the distance, in cm, between these two images created by the mirror. (This quantity should be positive!)