Effect of Motion: Image Velocity in Plane Mirrors | Class 12 | JEE | NEET

How fast does the image move when the object and/or mirror moves? We use a simple component method and solve quick cases. WHAT YOU’LL LEARN Split velocity into two components: parallel to mirror (tangential) and perpendicular to mirror (normal). Fixed mirror: • Image tangential component: v_img_parallel = v_obj_parallel • Image normal component: v_img_normal = - v_obj_normal Moving mirror with velocity u (vector): v_img = v_obj - 2 * ((v_obj - u) dot n) * n • Mirror moving along its normal with speed u (object fixed) → image speed = 2u along the normal. • Mirror moving parallel to itself → image motion is unchanged by the mirror’s motion. Worked examples: object approaching mirror, mirror approaching object, both moving. Physics 360: https://www.physics360.net Sigma Classes: https://www.sigmaclasses.net Call or WhatsApp: 92047 52273 Full class video: https://www.youtube.com/live/8gOmqiDG... #Physics360 #RayOptics #Reflection