Question

an object is placed many centimetre in front of a concave mirror of focal length 12 centimetre find the position and nature of the image

Answer 1

img is btwn center of curvature and focus

img size is not changed  

img is reversed

Answer 2

if many cm = 24 cm

then the image is at the centre of curvature of the mirror and it is reversed but its size does not change