Answer to Question #139021 in Optics for dwight

Question

An object is moved from a distance of 30 cm to a distance of 10 cm in front of a converging lens of focal length 20 cm. What happens to the image?
(a) The image goes from real and upright to real and inverted.
(b) The image goes from virtual and upright to real and inverted.
(c) The image goes from virtual and inverted to real and upright.
(d) The image goes from real and inverted to virtual and upright.
(e) None are correct.

Answer 1

Solution

When object is at 30 meter distance from lense then it's image will be real and inverted because object is beyond the 2F.(F is focus of lence)

And when object is at 10cm away from lens then it is in front of the F so image will be virtual and upright.

So

(d) The image goes from real and inverted to virtual and upright.

Will be the correct answer .