Question

An object when placed at the front of a mirror forms an image 3 times the object whose focal lenght is 15 cm. Find object position?​

Answer 1

Answer:

Explanation:    given is magnification m= -v/u

               v is image dist    u is obj dist

                         then -v = 3u  put in mirror formula

                  1/f = 1/v +1/u     then 1/15 = -1/3u +1/u

                                    then solving u get u= -10 cm

                                  i.e, 10 cm to the left of mirror                  

    PLZ MARK AS BRAINLIEST..........