Civil Engineering - Surveying - Discussion
Discussion Forum : Surveying - Section 2 (Q.No. 7)
7.
The angle between two plane mirrors of optical square, is
Discussion:
7 comments Page 1 of 1.
Lalit said:
5 years ago
In surveying optical square is used to setting out right angles. The horizon glass is placed at an angle of 120° with the horizon sight and index glass is placed at an angle of 105° with the index sight.
Anomi said:
6 years ago
In the SINGLE optical square, it contains two reflective planes inside, and the angle between two planes is 45°.
Sameer sopori said:
7 years ago
@All.
In the SINGLE optical square, it contains two reflective planes inside, and the angle between two planes is 45°,
Just draw these 4 angles of optical square on a paper, you will understand it easily 45°, 90°, 112.5 °, 112.5°, (the two planes are at 45° inside the optical square).
Thanks.
In the SINGLE optical square, it contains two reflective planes inside, and the angle between two planes is 45°,
Just draw these 4 angles of optical square on a paper, you will understand it easily 45°, 90°, 112.5 °, 112.5°, (the two planes are at 45° inside the optical square).
Thanks.
(1)
Eddie Murphy said:
7 years ago
It should be equal to 45°only. It having two squares.
Balaji shesherao jadhav said:
7 years ago
It should be equal to 45° only. It has two squares.
MADDEESWAR REDDY said:
7 years ago
It should be equal to 45° only. It has two squares.
Sameer kashmiri said:
1 decade ago
When we keep two mirror at an angle 45°, it will make angle of 90° by double mirror reflection.
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