The image of an object, placed at a distance of from a lens, is formed at a distance of on the other side of the lens. If the object is placed at a distance of from the lens, find the position of the image.
Important Questions on Refraction of Light at Spherical Surfaces : Lenses
A convex lens forms a virtual image of an object. Where is the object? Answer in terms of focal length.
Where should an object be placed in order to form an image of the same size by a convex lens? Can it happen in case of a concave lens also?
In an attempt to get a picture of Zebra, a person pastes black paper leaves on the lens of his camera and takes the photo of a white horse. Will he get the picture of Zebra?
What happens when a convex lens of refractive index is immersed in a liquid of refractive index ?
Under what condition does a lens become invisible when immersed in a transparent liquid?
A candle is burning at a distance on one side of a glass box. A same-size image of the candle is formed on a screen kept at on the other side of the box. What optical device is there in the box? What is its power?
