An astronomical telescope of ten-fold angular magnification has a length of `44 cm`. The focal length of the objective is

An astronomical telescope if ten -fold angular magnification has a length of 44 cm. The focal length of the objective is

An astronomical telescope of ten fild angular magnification has a length of 44 cm. The focal length of the object is

The lengths of the tube of an astronomical telescope is 44 cm and its angular magnification is 10 . What is the focal length of its objective ?

An astronomical telescope has a magnifying power 10. The focal length of eyepiece is 20 cm . The focal length of objective is