Civil Engineering - UPSC Civil Service Exam Questions - Discussion
Discussion Forum : UPSC Civil Service Exam Questions - Section 9 (Q.No. 30)
30.
Which one of the following gives the correct distance between the lighthouse and a ship, when the lighthouse whose height is 100 m is visible just above the horizon from the ship ?
Discussion:
8 comments Page 1 of 1.
Jitendra yadav said:
4 years ago
D=3.855 ° C
Where c=100
Then D=3.855 * 100=38.55km.
Where c=100
Then D=3.855 * 100=38.55km.
Clara said:
5 years ago
How the answer should be in km?
Mukesh prajapat said:
7 years ago
The formula is;
D=3.8533°c then c=100 now answer is 38.54.
D=3.8533°c then c=100 now answer is 38.54.
PIYUSH KUMAR said:
8 years ago
3.855*100^0.5 = 38.55.
Bharat said:
8 years ago
Which formula is used for this question?
Chhaya said:
8 years ago
Thanks @Mrinmoy Nath.
(1)
Mrinmoy Nath said:
8 years ago
The answer is C (100/.0673)^.5 = 38.54 km.
Navu said:
8 years ago
I think it should be option C.
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