Civil Engineering - Surveying - Discussion
Discussion Forum : Surveying - Section 6 (Q.No. 8)
8.
The difference in the lengths of an arc and its subtended chord on the earth surface for a distance of 18.2 km, is only
Discussion:
45 comments Page 5 of 5.
Engr said:
8 years ago
I think units are in mm not cm.
It's 10mm not 10cm.
It's 10mm not 10cm.
Sohel said:
9 years ago
But in a book of surveying, the difference is 1cm for 12 km distance so how it is possible to 10 cm for 18.2 km? As per book answer will be 1.5 cm.
Shyam lal yadav said:
9 years ago
0.1 m so 10 cm.
Ashu said:
9 years ago
@Raihan.
Number of the difference between the arc length and its subtended chord on the earth surface for a distance of 18.2 km is 0.1 m. So the correct option is (c) 10 cm.
Number of the difference between the arc length and its subtended chord on the earth surface for a distance of 18.2 km is 0.1 m. So the correct option is (c) 10 cm.
Raihan said:
1 decade ago
For 12 km the difference = 1 cm.
So for 18.2 km = 18. 2-1/12 = 1.52 cm = 15 mm.
So for 18.2 km = 18. 2-1/12 = 1.52 cm = 15 mm.
(1)
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