Question

An object 4cm ht is placed at a distance of 6cm in front of a concave mirror of focal length 12.0 cm. Find the position of the image formed.
......................................................
CBSE - 10 - BOARD - SCIENCE​

Answer 1

object height-4cm

u-6cm

f-12.0cm

1/f=1/u+1/v

-1/12=-1/6+1/v

v=12cm

Answer 2

Answer:

hey..

here's ur solution!!

given ,

f = -12

u = -6

v = ?

using the below expression,

1/f = 1/u + 1/v

1/v = 1/f - 1/u

-1 /12 - (-1)/6

-1+2/12

1/12

hence ,

v= 12

therefore, the position of the image is 12 cm behind the mirror i. e. VIRTUAL AND ERECT.

HOPE IT HELPS!!