Question

do it with explanation✔​

Answer 1

Explanation:

• We have to find the Sun's altitude on this day, which we can find by using a formula:

• Altitude = 90° - Latitude +/- Declination
• (Here we are given with three dates which are equinox and two solstices, so we have to use the formula accordingly)$.$

Let's start solving....

(1) 21st March:

• This is the day of an equinox which have the equal duration of day and night in the northern hemisphere. Also, the declination will be 0 on this day.

• ⇛ Altitude of sun = 90° - 66.5°

• ⇛ Altitude of sun = 23°

(2) 21st June:

• This is the day of summer solstice which have the lengthier duration of day than night in the northern hemisphere. Also, the declination will be + on this day.

• ⇛ Altitude of sun = 90° - 66.5° + 23.5°

• ⇛ Altitude of sun = 47°

(3) 22nd December:

• This is the day of winter solstice which have the lengthier duration of day than night in the Southern hemisphere. Also, the declination will be - on this day.

• ⇛ Altitude of sun = 90° - 66.5° - 23.5°

• ⇛ Altitude of sun = 90° - 90°

• ⇛ Altitude of sun = 0°

And we are done !!

Answer 2

a) The sun rises at the North Pole at noon to the horizon on the March equinox and the North Pole remains light until the September equinox. Arctic Circle: Experiences 12 hours of daylight and 12 hours of darkness. The sun is 66.5 off the zenith and low in the sky at 23.5 degrees above the horizon.