The stadia markings are-made on :
AObject glass
BDiaphragm
CEye-piece
DLens
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Related Questions:
The sight which is taken between BS and FS?
An imaginary line lying throughout the surface of the ground and preserving an constant inclination to the horizontal is known as :
The BM establish by the survey of India is known as the
A fixed reference point of known elevation
The line joining points of equal elevation is known as