Question

why is 82 and half degree longitude chosen as the standard Meridian for India

Answer 1

heya!

your query is why 82 and half degree longitude is selected a the standard meridian of india

IT ALMOST PASSES THROUGH THE MIDDLE OF THE COUNTRY

IT IS EXACTLY 5 HOURS 30 MINUTE AHEAD OF GMT

IT IS A MULTIPLE OF 7DEGREE 3MINUTES AS A GLOBE HAS 24 TIME ZONES EACH OF 15LONGITUDES SO LOCAL TIME IN EACH ZONE AT THE MIDDLE LONGITUDE(DIVIDED BY 7DEGREE 30 MINUTES) IS TAKEN AS STANDARD TIME

OR YOU CAN WRITE THE ANSWER IN THIS WAY ALSO

82DEGREE 30' E IS ALMOST THE MIDDLE MERIDIAN OF LONGITUDE OF INDIA

TO AVOID CONFUSION OF TRANSPORT AND COMMUNICATION TIMINGS INDIA SELCTED THE STANDARD MERIDIAN

THE WESTERN MOST LONGITUDE 68DEGREE 7'E AND THE EASTERN MOST LONGITUDE 97DEGREE 25' E(ALMOST 30DEGREE LONGITUDES AWAY FROM EACH OTHER) THUS,THE DIFFERENCE IS OF TWO HOURS(4*30=120MINUTES OR 2 HOURS)

            97 DEGREE- 68DEGREE= 29DEGREE

           29DEGREE/2 = 14.5 DEGREE

14.5DEGREE+68DEGREE= 82.5 DEGREE EAST

       SO THE LOCAL TIME OF 82DEGREE 30'E IS TAKEN AS STANDARD TIME THROUGHT THE COUNTRY AND ALL THE ATCHES IN THE COUNTRY RUN ACCORDING TO THE TIME OF 82DEGREE 30'E IT IS CALLED IST (INDIAN STANDARD TIME)

HOPE THIS HELPS

KEEP SMILING

:)