Questions
A car is fitted with a convex side -view mirror of focal length 20cm. A second car 2.8m behind the first car is overtaking the first car at relative speed of 15m/s. The speed of the image of the second car as seen in the mirror of the first one is
detailed solution
Correct option is A
1f=1v+1u, 120=1v-1280⇒v=28015cm Vi=v2u2V0 Vi=28015 x 2802 x 15 ; Vi=115ms-1Talk to our academic expert!
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The distance of a real object from the focus of a convex mirror of radius of curvature ‘a’ is ‘b’. Then the distance of the image from the focus is
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