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: |
70.8 cm 68.5 cm 58.3 cm 60.5 cm |
70.8 cm |
The correct answer is Option (1) → 70.8 cm |