TNPSC Thervupettagam

Zero Shadow Day

April 25 , 2019 2043 days 3184 0
  • Chennai observed Zero Shadow Day on 25-04-19.
  • On this day the sun will be exactly overhead.
  • It will cast almost no shadow of objects on the ground.
  • This happens two times a year.
  • This is because the sun rays will hit the surface perpendicularly on the object.
  • Therefore, the shadow of the object will be directly beneath it.
  • It occurs at different times in different places around the world
  • In India, it is usually observed in April and September.
  • It occurs only at places located between Tropic of Cancer and Tropic of Capricorn.
  • Therefore, Indian places like Delhi, Allahabad, Srinagar, located away from the Tropic of Cancer have no zero-shadow day.

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