An object's distance from a converging lens is 3.78 times the focal length. a) determine the location of the image. express the answer as a fraction of the focal length.
(b) find the magnification of the image?
(c) indicate whether it is upright or inverted?
(d) indicate whether it is real or virtual?

a) v=1.36f

b)m=.36

c) real

d) Inverted

Explanation:

a)

In this question we have given,

object distance from converging lens,u=-3.78f

focal length of converging lens,=f

we have to find location of image,v=?

and magnification,m=?

we know that u, v and f are related by following formula

.............(1)

put values of f u in equation (1)

we got,

or

v=1.36f

b) Magnification,

c)

Here the object is located further away from the lens than the focal point therefore image is real image and inverted.

d) image is inverted

this means that the temperature of both substances will be equal