Question

an object is placed at a distance of 18 cm from a concave lens of focal length 6 cm find the location nature and size of the image ​

Answer 1

Answer:

Explanation:

u = -18cm

f= -6cm

1/f = 1/v - 1/u

-1/6 = 1/v + 1/18

1/v = - 4/18

v = -4.5cm

m = v/u

    = -4.5/-18

    = 0.25

Nature of image:

image is formed in the same size of the object.

Virtual, Erect and diminished in size

Answer 2

Explanation:

image is virtual and 9cm behind the mirror and size of magnification is 2