Discussion :: Surveying
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Pick up the correct specification of Ramsden eyepiece from the following :
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A.
it consists of two equal piano convex lenses |
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B.
the curved surfaces of plano-convex lenses face each other |
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C.
the two lenses are separated by a distance equal to 2/3 of the focal length of either lens. |
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D.
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 |
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E.
all the above. |
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Answer : Option E
Explanation :
No answer description available for this question.
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