In order to obtain a magnification of, −1.5 with a concave mirror of focal length 16 cm, the object will have to be placed at a distance

(a) between 6 cm and 16 cm
(b) between 32 cm and 16 cm
(c) between 48 cm and 32 cm
(d) beyond 64 cm

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Solution

(b) between 32 cm and 16 cm
To obtain a magnification of -1.5, the object needs to be placed between the focus and the centre of curvature.

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In order to obtain a magnification of, −1.5 with a concave mirror of focal length 16 cm, the object will have to be placed at a distance (a) between 6 cm and 16 cm (b) between 32 cm and 16 cm (c) between 48 cm and 32 cm (d) beyond 64 cm

(b) between 32 cm and 16 cm To obtain a magnification of -1.5, the object needs to be placed between the focus and the centre of curvature.

In order to obtain a magnification of, −1.5 with a concave mirror of focal length 16 cm, the object will have to be placed at a distance

(a) between 6 cm and 16 cm
(b) between 32 cm and 16 cm
(c) between 48 cm and 32 cm
(d) beyond 64 cm

(b) between 32 cm and 16 cm
To obtain a magnification of -1.5, the object needs to be placed between the focus and the centre of curvature.