physics

[hina offline]

a lighted candle is placed 12 cm from a convex mirror if focal length of mirror is 15 cm and height of the candle is 4.5 cm find the position ,nature and size of the image

[TheWewOne offline]

1/s'=-(1/f+1/s)
=-(1/15+1/12)
=-9/60

s'=-20/3 cm

h'/h=|s'/s|
<=> h'/4.5=|(-20/3)/12|
<=> h'=2.5 cm
Its unreal shadow
Next time, dont ask pure phisics in this forum. Maybe, no body respond you