Question

a convex mirror of focal length 2 metre is used as a rear view mirror in a car. If a bike is present at 15 metre from the mirror, then find the position and size of the image of bike.​

Answer 1

Explanation:

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Answer 2

Answer:

Explanation:

Focal length, f=20cm  

Object distance, u=6m=600cm

Image distance, v=?

from mirror formula  1/f=  1/v + 1 /u

1 /20 =   1/v−1/ 600

⇒  v=20 + 600= 20+600

620 =v

600/31

v=  600 /31

=19.35cm

Hence, the position of second car as seen in the mirror of first car is 19.35cm back of the mirror