While calculating h2 with reference to h1, line of sight must be _____

Question

While calculating h2 with reference to h1, line of sight must be ______ m above the point of tangency.

Options:

A . 5-6 m

B . 4-5 m

C . 3-4 m

D . 2-3 m

Answer: Option D
Answer: (d).2-3 m

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