Advertisements
Advertisements
Question
Give reasons for the following statement :
The duration of day and night is equal everywhere on 21st March and 23rd September.
Advertisements
Solution
These are two special positions in the revolutionary course of the Earth when days and nights are equal throughout the world. They are the two equinox, the first on March 21 st and the second on September, 23 rd. Because on these two days the mid-day sun is overhead at the equator, the positions of both the hemispheres are the same in respect of the sun.
RELATED QUESTIONS
Who devised the lines of latitude and longitude?
Express 1° angular distance in kilometers.
Give a geographical reason for the period of twilight and dawn increases polewards.
Describe the two interesting phenomena made by the circle of illumination viz., Solstice and Equinox.
Describe how seasons are made and reversed between the Northern and Southern Hemispheres.
Distinguish between:
Equinox and Solstice
Distinguish between :
Twilight and Dawn.
When does the winter solstice occur?
When is the spring equinox?
Give reasons for the following Statement :
The areas, lying on the Equator, have their duration of day-light almost constant throughout the year.
