Questions
In the diagram shown, the lens is moving towards the object with a velocity V m/s and the object is also moving towards the lens with the same speed. What is speed of the image with respect to earth when the object is at a distance 2f from the lens?
(f is the focal length):
detailed solution
Correct option is D
Vil=vu2Vo/l Vi−Vl=+2f−2f2V0−Vl Vi−(−V)=(−1)2[V−(−V)]⇒ Vi=VTalk to our academic expert!
Similar Questions
An object is placed at a distance of 12 cm from a converging lens on its principal axis and a virtual image of certain size is formed. Now the lens is moved 4 cm away from the object and a real image of the same size as that of the (previous) virtual image is formed. The focal length in cm of the lens is:
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