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NEET 2024
Exam
NEET
Year
2024
Subject
Physics
Chapter
Ray Optics

NEET 2024 · Physics · Ray Optics

A small telescope has an objective of focal length 140 cm and an...

A small telescope has an objective of focal length 140 cm and an eye piece of focal length 5.0 cm . The magnifying power of telescope for viewing a distant object is:

Options

  1. A28
  2. B17
  3. C32
  4. D34

Correct answer

A. 28

Step-by-step solution

f0=140 cmf_0=140 \mathrm{~cm} and fe=5 cmf_e=5 \mathrm{~cm} For distant object, m=f0fe=1405=28m=\frac{f_0}{f_e}=\frac{140}{5}=28
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