Question: A small object is 20 cm from a thin positive lens of focal length 10 cm. To the right of the lens is a plane

A small object is 20 cm from a thin positive lens of focal length 10 cm. To the right of the lens is a plane mirror that crosses the axis at the second focal point of the lens and is tilted so that the reflected rays do not go back through the lens (Figure).

(a) Find the position of the final image.

(b) Is this image real or virtual?

T 10 cm 20 cm F' Mirror

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