Find the RL of Q from the following data. Horizontal Distance between…

Question

Find the RL of Q from the following data.

Horizontal Distance between P and Q= 9450 m

Angle of elevation from P to Q= $2^{\circ} 15'$

Height of signal at Q= 4.0m

Height of instrument at P= 1.25m

Coefficient of refraction = 0.07

R sin 1" = 30.88

RL of P = 410.0m