For the same fully specified condition: a concave mirror has magnification −3, then after a 10 cm outward object shift magnification −2. Find the initial image distance magnitude in centimetres.
Physics · Geometrical optics · spherical mirror
JEE Mains NEET

Question

For the same fully specified condition: a concave mirror has magnification −3, then after a 10 cm outward object shift magnification −2. Find the initial image distance magnitude in centimetres.

G1 Physics · Accepted Answer

From f=60 cm, initial u=80 cm and initial v=3u=240 cm.