Q. Indian Standard Time relates to
✅ Correct Answer: (B)
82.5°E longitude
Explanation: Indian Standard Time (IST) is based on the 82.5°E longitude, which passes through Mirzapur, Uttar Pradesh.
This meridian is chosen as the standard time reference for the entire country.
Other Options Explained:
(A) 75.5°E longitude – Not used for IST.
(C) 90.5°E longitude – Closer to Northeast India but not the standard meridian.
(D) 0° longitude – Refers to the Prime Meridian (Greenwich, UK), not related to IST.
Thus, the correct answer is (B) 82.5°E longitude.
Explanation by: Mr. Dubey
Indian Standard Time (IST) is based on the 82.5°E longitude, which passes through Mirzapur, Uttar Pradesh.
This meridian is chosen as the standard time reference for the entire country.
Other Options Explained:
(A) 75.5°E longitude – Not used for IST.
(C) 90.5°E longitude – Closer to Northeast India but not the standard meridian.
(D) 0° longitude – Refers to the Prime Meridian (Greenwich, UK), not related to IST.
Thus, the correct answer is (B) 82.5°E longitude.
This meridian is chosen as the standard time reference for the entire country.
Other Options Explained:
(A) 75.5°E longitude – Not used for IST.
(C) 90.5°E longitude – Closer to Northeast India but not the standard meridian.
(D) 0° longitude – Refers to the Prime Meridian (Greenwich, UK), not related to IST.
Thus, the correct answer is (B) 82.5°E longitude.