Q.
Statement I Focal length of the eyepiece of telescope is smaller as compared to the objective which has a larger focal length and aperture.
Statement II For larger focal length of objective than eyepiece, magnification is more in astronomical telescopes.
Ray Optics and Optical Instruments
Solution:
For astronomical telescope, $|m|=\left|\frac{f_{o}}{f_{e}}\right|$.
So, magnification is inversely proportional to focal length of the eyepiece and directly proportional to focal length of objective. The larger $f_{o}$ and smaller $f_{e}$ will given better magnification.
