Question

Angle made by radial line joining the location to the centre of the earth with the projection of the line on the equatorial plane is called _________

(a) Latitude

(b) Zenith angle

(c) Hour angle

(d) Declination

I got this question in an online quiz.

This intriguing question originated from Solar Constant topic in division Solar Energy of Energy Engineering

Answer 1

Right option is (a) Latitude

The explanation is: Angle made by radial line joining the location to the centre of the earth with the projection of the line on the equatorial plane is called latitude. And it is denoted by Φl. It is also given by the angular distance north or south of the equator measured from the centre of the earth.