JEE Main & Advanced
Physics
Ray Optics
Question Bank
Numerical Value Type Questions - Optical Instrument
question_answer
A police inspector is chasing a thief who is running away in a car with a speed 3 m/s. The speed of police jeep is 12 m/s, then speed (in m/s) of image of police jeep as seen by thief in the rear view mirror when police jeep is at a distance of 30 m is (Given that focal length of rear view mirror is 15 m)?