Question

Which are the two factors responsible for the apparent movement of the sun?
A) Revolution of earth
B) Tilted axis of earth
C) Both (A) and (B)
D) None of the above

Answer 1

Hint: The Sun is the central star of our Solar System. It's a nearly perfect sphere of hot plasma, heated to incandescence in its centre by nuclear fusion processes and emitting energy mostly as visible light, ultraviolet light, and infrared radiation. It is, without a doubt, the most vital source of energy for life on Earth. It has a diameter of 1.39 million kilometres (864,000 miles), which is 109 times that of the Earth. It has a mass of roughly 330,000 times that of Earth and makes up 99.86 percent of the Solar System's total mass.

Complete answer:
The apparent motion of the sun, which is induced by the Earth's rotation around its axis, alters the angle at which direct light strikes the Earth. The sun seems to move across the sky from a stationary point on Earth. The position of the sun is determined by the location of a place on Earth, as well as the time of day and year.
The quantity of electricity obtained by a solar collector is greatly influenced by the apparent velocity of the sun. The power density on the surface is equal to the incident power density when the sun's beams are perpendicular to the absorbing surface. The intensity on the surface, on the other hand, decreases when the angle between the sun and the absorbing surface varies. The intensity of light is nearly nil when the module is parallel to the sun's beams (and the angle to the module normal is perpendicular). The relative power density at intermediate angles is cos(A), where A is the angle between the sun's beams and the module normal.
The angle formed by the sun and a fixed place on Earth is determined by the location's longitude, the time of year, and the time of day. Furthermore, the time at which the sun rises and sets is determined by the location's longitude. As a result, the latitude, longitude, year, and time of day are all required for comprehensive modelling of the sun's angle to a specific location on Earth.
Hence option (C) is correct.

Note:
The apparent movement of the sun is the movement of the sun towards the north or south over the course of a year. The apparent movement of the sun is caused by two factors: the earth's revolution around the sun and the tilted axis of the earth. Seasons are exclusively observed in relation to the northern and southern hemispheres.