Question

a man hold a shaving mirror radius of curvature 60cm focal length 30cm at a distance 15cm from his nose find v and m

Answer 1

hey sakna here

in concave mirror

r = 60 cm

f = 30 cm

u = 15 cm

by applying lens formula

    1/v + 1/u               =  1/f

    1/ v + 1/-15            = 1/ -30

    1/v                        =  1/-30 + 1/15

     1/v                       = 1/30

     v                          = 30

     m                         = 2

hope it help

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be brainly@