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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°
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altitude of sun 0 hope it help yuo
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