An object of length 4 cm is placed in front of a concave mirror at distance 30 cm. The focal length of mirror is 15 cm. (a) Where will the image form? (b) What will be the length of image? Share with your friends Share 0 Deepak Kumar answered this Dear Student , Given h = 4cm , u =-30 cm , f = - 15 cm (a) using mirror formula , we have 1v+1u=1f1v=130-1151v=-130v= -30 cmHence the image will be formed at a distance of 30 cm on the same side as the object .(b) Linear magnification is m =h'h=-vuh'=-vuh=-30-30×4h'=-4cmTherefore the length of the image is the same as the object ie 4 cm but it is invertedin nature Regards 0 View Full Answer Akshat Einstien answered this Image will form at the same distance and of same height because it is placed at centre of curvature(C). 1
