Question 1 Report
A lens of focal length 12.0cm forms an upright image three times the size of a real object. The distance between the object and the images is
Answer Details
F = 12cm, V = 3u
F = uvu+v u v u + v
12 = u×3uu+3v u × 3 u u + 3 v
u = 16cm, and v = 48cm
therefore, distance between u and v
v = 48 - 16 = 32cm