Physics - Geometrical Optics Question with Solution | TestHub
PhysicsGeometrical OpticsRefraction at curved surface/LensMedium2 minQB
PhysicsMediumsingle choice
In the case of a converging lens, a real object is at a finite distance L from the lens. It is moving with speed . The image is formed at the focus of the lens. What is the speed of the image?
Options:
Answer:
D
Solution:
The lens equation is . Differentiating with respect to time, we get .
Since and , .
As
.
Stream:JEESubject:PhysicsTopic:Geometrical OpticsSubtopic:Refraction at curved surface/Lens
⏱ 2mℹ️ Source: QB
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