Question

An object is placed on the principal Axis at a distance of 8 cm in front of the concave mirror of focal length 3 cm draw ray diagram to find the image write the characteristics of the image formed​

Answer 1

The image is :
(i) Real and inverted
(ii) Formed in front of the mirror
(iii) Formed between F and C of the mirror.

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Answer 2

u = -8cm

f= -3cm

to find; v

by mirror formula,

                            1/v+1/u=1/f

                            1/v=1/f-1/u

                             1/v=1/-3-1/-8

                            v=-4.8cm

                               

characteristics of image formed is virtual erect and diminished