Question

An object is placed at 15 cm from the pole of a concave mirror of focal length 10 cm. What is

the size, position, nature and magnification of the image​

Answer 1

Answer:given data

focal length=-15cm

object distance=-10cm

position of image =?

nature of image=?

size of the image =?

•.•mirror formula

1/f=1/ u + 1/v

1/-15=1/-10+1/v

1/-15+1/10 =1/ v

-2+3/30=1/v

1/30=1/v

1/30=1/v

v=30cm

since magnification

hi/ho=-v/u

= -30/-10

=3cm

hence position of image is 30cm,image is erect,enlarged,virtual