Question

1. What is circle of illumination?

2. why do we have a standerd Time?

3. what is the standerd meridian of india?


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Answer 1

Answer:

• The imaginary line that separates day from night on earth is called the circle of illumination.
• We need a standard meridian for India because of the vast longitudinal extent of the mainland.
• In India 82 ½ °E longitude determines the standard time.This is known as the Indian Standard Time.

Answer 2

Answer:

1. The imaginary line that separates day from night on earth is called the circle of illumination.
2. We need a standard meridian for India because of the vast longitudinal extent of the mainland.
3. The longitude of 82½° E (82° 30' E) is considered the standard meridian. The local time at this meridian is taken as the standard time for the whole country. It is known as Indian Standard Time (IST).