Civil Engineering - Surveying - Discussion

Discussion Forum : Surveying - Section 3 (Q.No. 30)

Surveying

30.

The construction of optical square is based, on the principle of optical

reflection

refraction

double refraction

double reflection.

Answer: Option

Explanation:

No answer description is available. Let's discuss.

Discussion:

22 comments Page 3 of 3.

Minay said: 9 years ago

Double reflection because it having two mirrors adjusting in 45 degree each other.

Minay said: 9 years ago

Double reflection because it having two mirrors adjusting in 45 degree each other.

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