Name: Solstice and Equinox
Uploaded: 2019-07-19
Duration: 6 min 45 s
Description: We all have experienced differences in day and night during specific periods of the year. What is the reason behind this? Let's find out!

Question

Explain the occurrence of seasons with the help of a diagram.

Accepted Answer

The occurrence of different seasons in different times of the year is primarily influenced by two main factors that are Revolution of the Earth and the Inclination of the Earth's axis at a fixed angle and direction.

June $21$ : In the Northern Hemisphere, it is summer because the region is inclined towards the Sun. The Sun's rays fall vertically on the Tropic of Cancer, resulting in longer daylight hours and the longest day of the year.

December $22$ : In the Southern Hemisphere, it is summer because the region is inclined towards the Sun. The Sun's rays fall vertically on the Tropic of Capricorn, resulting in longer daylight hours and the longest day of the year. In the Northern Hemisphere, it is winter because the region is turned away from the Sun, receiving slanting rays and shorter daylight hours.

March $21$ : On this day, the Sun shines vertically over the Equator, causing equal days and nights worldwide. In the Northern Hemisphere, it is spring, and in the Southern Hemisphere, it is autumn.

September $23$ : On this day, the Sun shines vertically over the Equator, causing equal days and nights worldwide. In the Northern Hemisphere, it is autumn, and in the Southern Hemisphere, it is spring.

	$21$ June	$23$ September	$22$ December	$21$ March
Northern Hemisphere	faces the Sun			has spring
Southern Hemisphere		has spring

Explain the occurrence of seasons with the help of a diagram.

Important Questions on Motions of the Earth

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