TS EAMCET · Physics · Ray Optics
A telescope has an objective of focal length \(100 \mathrm{~cm}\) and an eye-piece of focal length \(5 \mathrm{~cm}\). The magnifying power of the telescope is
- A 20
- B 500
- C \(\frac{1}{20}\)
- D 105
Answer & Solution
Correct Answer
(A) 20
Step-by-step Solution
Detailed explanation
Magnification of a telescope for normal setting is \(m=\frac{f_o}{f_e}=\frac{100}{5}=20\)
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