Focal length of objective & eyepiece of a telescope are fO & f e respectively.
Column –I | Column –II |
(i) Intensity of the image | [A] Radius of curvature (R) |
(ii) Angular Magnification of lens | [B] Dispersion |
(iii) Length of telescope | [C] Focal length fO & Fe |
(iv) Sharpness of image | [D] Spherical aberration |
Text Solution
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Ans.
(i) [A],[C]
(ii) [C]
(iii) [C]
(iv) [A],[B],[D]
Sol.
(i) Radius of curvature (R), Focal length fO &
Fe
(ii) Focal length fO & Fe
(iii) Focal length fO & Fe
(iv) Radius of curvature (R), Dispersion, Spherical
Aberration
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