ECAT & MDCAT XI PHYSICS : Chapter 10 OPTICAL INSTRUMENTS (test 1) Leave a Comment / By Afshan JAMAL / July 4, 2026 Welcome to your ECAT & MDCAT XI PHYSICS : Chapter 10 OPTICAL INSTRUMENTS (test 1) Two plane mirrors are placed perpendicular to each other. A ray strikes one mirror and after reflection falls on the second mirror. The ray after reflection from the second mirror will be: perpendicular to the original ray parallel to the original ray at 45° to the original ray can be at any angle to the original ray None None Previous Start Quiz Next Time's up
