Question

An internal focussing type surveying telescope, may be focussed by the movement of

a.

objective glass of the telescope

b.

convex-lens in the telescope

c.

concave lens in the telescope

d.

plano-convex lens in the telescope.

Posted under Civil Engineering

Answer: (c).concave lens in the telescope

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Q. An internal focussing type surveying telescope, may be focussed by the movement of

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