In case of a simple magnifier of focal length 'f' what are the maximum and minimum distances of (a) object and (b) its image from the lens if least distance of distinct vision is D?

The minimum distance between an object and its real image formed by a convex lens is

The minimum distance between an object and its real image formed by a convex lens is

A convex lens of a focal length 5 cm is used as a simple microscope. Where should an object be placed so that the image formed by it lies at the least distance of distinct vision (D = 25 cm) ?

In a compound microscope consisting of two convex lenses of focal lengths 1.5 cm and 10 cm, the object is 2 cm from the objective and the final image is formed at the least distance of distinct vision (D=25cm) . Find the distance of separation of the two lenses.

A convex lens of focal length 10 cm and imag formed by it, is at least distance of distinct vision then the magnifying power is

The two lenses of a compound microscope are of focal lengths 2 cm and 5 cm. If an object is placed at a distance of 2.1 cm from the objective of focal length 2 cm the final image forms at the final image forms at the least distance of distinct vision of a normal eye. Find the magnifying power of the microscope.

The minimum distance between a real object and its real image formed by a thin converging lens of focal length f is

The maximum magnification that can be obtained with a convex lens of focal length 2.5 cm is (the least distance of distinct vision is 25 cm )

The magnifying power of a simple microscope is 6. The focal length of its lens in metres will be, if least distance of distinct vision is 25cm

The minimum distance between an object and its real image formed by a thin convex lens of focal length f is K.f . Find the value of K .