JEE · NEET Previous Year Question
A small telescope has an objective of focal length 140 cm and an eyepiece of focal length 5.0 cm. The magnifying power of telescope for viewing a distant object is [NEET 2024]
Topic: NEET PYQ
Answer: B. Full step-by-step solution below.
- A34
- B28
- C17
- D32
Correct answer: B
Solution
(b) Given, focal length of objective,Focal length of eyepiece,
Magnifying power,
More Optical Instruments PYQs
- The magnifying power of a telescope with tube length 60 is 5 . Then the focal length of its eye piece is
- A compound microscope is a magnification of 24. The focal length of the eyepiece is . The final image is forme…
- The magnifying power of a telescope with tube length 60 cm is 5. What is the focal length of its eye piece?
- In normal adjustment, for a refracting telescope, the distance between objective and eye piece is 30 cm. The focal length of the o…
- A astronomical telescope has objective and eyepiece of focal lengths 40 cm and 4 cm respectively To view an object 200 cm away fro…