Practicing Success

Target Exam

CUET

Subject

Physics

Chapter

Ray Optics

Question:

A telescope has an objective of focal length 50 cm and eyepiece of focal length 5 cm. The least distance of distinct vision is 25 cm. The telescope is focused for distant vision on a scale 200 cm away from the objective. Calculate the separation between objective and eyepiece:

Options:

70.8 cm

68.5 cm

58.3 cm

60.5 cm

Correct Answer:

70.8 cm

Explanation:

The correct answer is Option (1) → 70.8 cm