Ray Optics » Exercise - 17. The final image formed by an terrestrial telescope is : (a) Erect (b) Inverted (c) Sometimes erect, sometimes inverted (d) None of these
Ray Optics » Exercise - 115. An object is placed at a distance of 40 cm infront of concave mirror of focal length 20 cm. The image produced ______ . (a) Virtaul and inverted. (b) Real and erect. (c) Real, inverted and diminished. (d) Real, inverted and same size of an object.