A convex mirror gives transverse magnification +1/4. A point object moves upward at 8 cm/s perpendicular to the axis. Find image transverse speed in cm/s.
Physics · Geometrical optics · spherical mirror
JEE Mains NEET

Question

A convex mirror gives transverse magnification +1/4. A point object moves upward at 8 cm/s perpendicular to the axis. Find image transverse speed in cm/s.

G1 Physics · Accepted Answer

vᵢ⊥=m vₒ⊥=(1/4)×8=2 cm/s upward.