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What is the peculiarity of the duration of day and night in both the hemispheres on 21 March, 21 June, 23 September and 22 December?Hints:Apparent position of the sun (i) The duration of day and night in both the hemispheres(ii) The names by which this days are known. |
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Answer» 21 March – The sun comes vertically over head at the Equator – The duration of day and night are equal on both the hemispheres- Equinox 21 June – The sun is vertically overhead at the Tropic of cancer – The longest day in the northern hemisphere and longest night in the southern hemisphere – Summer solstice 23 September – The sun comes vertically overhead at the equator – The duration of day and night are equal on both the hemispheres- Equinox 22 December -The sun is vertically over head at the tropic of Capricorn – The longest day in the southern hemisphere and longest night in the northern hemisphere – Winter solstice |
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