Geometrical OpticsHard
Question
A car is fitted with a convex side-view mirror of focal length 20cm. A second car 2.8 m behind the first car is overtaking the first car at relative speed of 15 m/s. The speed of the image of the second car as seen in the mirror of the first one is :
Options
A.
B.10 m/s
C.15 m/s
D.
⇒ f = 20 cm
⇒ 
⇒ 
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