A simple telescope used to view distant objects has eyepiece and objective lens of focal lengths fe and f0 , respectively.

Q: A simple telescope used to view distant objects has eyepiece and objective lens of focal lengths f_e and f₀ , respectively. Then

$\large Column I   \; \; \; \;                   Column II$

(A) Intensity of light received by lens    (P) Radius of aperture R

(B) Angular magnification          (Q) Dispersion of lens

(C)Length of telescope     (R) focal length f₀ , f_e

(D) Sharpness of image       (S) spherical aberration

Solution :

(A) – P ; (B) – R ; (C) – R ; (D) – P , Q , S