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AIIMS 2016
Exam
AIIMS
Year
2016
Subject
Physics
Chapter
Ray Optics

AIIMS 2016 · Physics · Ray Optics

Focal length of objective and eye piece of telescope are 200 ~cm...

Focal length of objective and eye piece of telescope are 200 cm200 \mathrm{~cm} and 4 cm4 \mathrm{~cm} respectively. What is the length of telescope for normal adjustment?

Options

  1. A196 cm196 \mathrm{~cm}
  2. B204 cm204 \mathrm{~cm}
  3. C250 cm250 \mathrm{~cm}
  4. D225 cm225 \mathrm{~cm}

Correct answer

B. 204 cm204 \mathrm{~cm}

Step-by-step solution

In normal adjustment, L=fo+fe=200 cm+4 cm=204 cmL=f_o+f_e=200 \mathrm{~cm}+4 \mathrm{~cm}=204 \mathrm{~cm}
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