Question

11. Find the size, nature and position of image formed by a concave mirror, when an
object of size 1cm is placed at a distance of 15cm. Given focal length of mirror is
10cm.​

Answer 1

Answer:

v=30 cm

Explanation:

1/f=1/u+1/v

==>'v=30 cm

Image formed concave mirror is diminished,real and inverted image

Answer 2

Answer:

By using mirror formula

1/u + 1/v = 1/f

therefore, v = fu/u-f

v = -30cm.

The image is formed at a distance of

30m from the mirror

Now, magnification = H/h

m = -v/u = H/h

H = -2

Hence the image is real, inverted and enlarged