The length of an astronomical telescope is 40 cm. The focal lengths of its lenses will be

The length of a telescope is 36 cm . The focal lengths of its lenses can be

The length of a telescope is 36 cm . The focal lengths of its lenses can be

The minimum magnification is 10 and maximum tube length of an Astronomical telescope is 55 cm. The focal length of objective (f_0) and the focal. Length of eyepiece (f_e) are

The focal length of the lenses of an astronomical telescope are 50 cm and 5 cm. The length of the telescope when the image is formed at the least distance of distinct vision is

The focal lengths of the lenses of an astronomical telescope are 50cm and 5cm . The length of the telescope when the image is formed at the least distance of distinct vision is