If $$\alpha $$, H, A and $$\delta $$ be the altitude, hour angle, azimuth and declination of a circumpolar star at its elongation, in latitude $$\lambda $$, the following relation holds good
A. $$\cos {\text{H}} = \frac{{\tan \lambda }}{{\tan \delta }}$$
B. $$\sin \alpha = \frac{{\sin \lambda }}{{\sin \delta }}$$
C. $$\sin {\text{A}} = \frac{{\cos \delta }}{{\cos \lambda }}$$
D. All the above
Answer: Option D
Related Questions on Surveying
Which of the following methods of contouring is most suitable for a hilly terrain?
A. Direct method
B. Square method
C. Cross-sections method
D. Tachometric method
A. 750 mm × 900 mm
B. 600 mm × 750 mm
C. 450 mm × 600 mm
D. 300 mm × 450 mm
A. 22° 30'
B. 23° 27'
C. 23° 30'
D. 24° 0'
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