Question

A small object is placed to the left of a convex lens and on its optical axis. The object is 33 cm from the lens, which has a focal length of 15 cm. Determine the location of the image formed by the lens. (Enter your answer in cm from the lens.)

cm from the lens

b. Describe the image. (Select all that apply.)
real
virtual
upright
inverted
enlarged
reduced
on the left side of the lens
on the right side of the lens

Answer 1

a) The position of the image can be calculated via the  thin lens formula

$$1/u + 1/v = 1/f$$

Using this formula

$$v = fu/{(u-f)} =(15*33)/{(33-15)}=27.5 cm$$

b) as one can see from the image is

real

inverted

reduced

on the right side of the lens