A motor car is fitted with a convex driving mirror of focal length 20 cm. A second motor car 2.01 m broad and 1.005m high is 40 m behind the first car. The size of the image of the second car seen in the mirror of the first, is.
see full answer
Your Exam Success, Personally Taken Care Of
1:1 expert mentors customize learning to your strength and weaknesses – so you score higher in school , IIT JEE and NEET entrance exams.
An Intiative by Sri Chaitanya
a
Breadth = 8cm, height = 4 cm
b
Breadth = 1cm, height = 0.5 cm
c
Breadth = 12cm, height = 6 cm
d
Breadth = 14cm, height = 7 cm
answer is B.
(Unlock A.I Detailed Solution for FREE)
Best Courses for You
JEE
NEET
Foundation JEE
Foundation NEET
CBSE
Detailed Solution
f = 20cm, u = -4000cm. Using , 1v+1u =1fwe get .v=4000201cm Also m= IO=vu=4000201×14000=1201 Size of the image =1201 (size of object)