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Civil Engineering - Surveying - Discussion

Discussion Forum : Surveying - Section 2 (Q.No. 35)
Surveying
35.
Pick up the correct specification of Ramsden eyepiece from the following :
it consists of two equal piano convex lenses
the curved surfaces of plano-convex lenses face each other
the two lenses are separated by a distance equal to 2/3 of the focal length of either lens.
the distance between the diaphragm and the front lens of the eyepiece is kept equal to 1/4 th of the focal length of a lens so that rays from a point on the diaphragm enter the eye as a parallel beam
all the above.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
1 comments Page 1 of 1.
Nitin p. Mate said:   7 years ago
What is Ramsden?
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