An astronomical telescope has a magnifying power 10. The focal length of eyepiece is 20 cm . The focal length of objective is
A
2 cm
B
200 cm
C
D
Text Solution
Verified by ExpertsThe correct answer is:
B
Prepare Smarter with CGP Edu
Get practice questions, solutions, and test series in one place.
Write a Review
Share your experience with this question and solution.
Commentary
Send your comment, doubt, correction, or feedback to admin.
Similar Questions
Explore conceptually related problems
The focal lengths of the objective and eye-lens of a microscope are 1 cm and 5 cm respectively. If …
In a compound microscope magnification will be large, if the focal length of the eye piece is
The focal length of the objective lens of a compound microscope is
Microscope is an optical instrument which
Magnifying power of a simple microscope is (when final image is formed at D = 25 cm from eye)
If in compound microscope m 1 and m 2 be the linear magnification of the objective lens and eye len…