then the focal length of the lens will be
An object is kept at a distance of 16 cm from a thin lens and the image formed is real. If the object is kept at a distance of 6 cm from the same lens, then the image formed is virtual. If the sizes of the image formed are equal, then the focal length of the lens will be
15
Nov
An object is kept at a distance of 16 cm from a thin lens and the image formed is real. If the object is kept at a distance of 6 cm from the same lens, then the image formed is virtual. If the sizes of the image formed are equal, then the focal length of [...]