Which one of the following places of Madhya Pradesh is on or nearest to 80° east longitude?
- (a)Jabalpur
- (b)Rewa
- (c)Panna
- (d)Katni
Correct — A, Jabalpur. Jabalpur lies at about 79.95° E, just west of the 80° E meridian, making it the closest of the four listed places to 80° E longitude. Panna, Katni and especially Rewa sit farther east of the 80° line, so Jabalpur is the nearest to it.
- (b)Rewa — Rewa lies well east of the 80° E meridian (around 81° E), so it is the farthest of the four from the 80° line.
- (c)Panna — Panna lies east of 80° E, farther from the meridian than Jabalpur.
- (d)Katni — Katni also lies east of 80° E; though close to Jabalpur, it is a little farther from the exact 80° line.
Longitudes are the north–south lines measured east or west of the Prime Meridian (0°). India lies between about 68° E and 97° E, and its Standard Meridian is 82.5° E (passing near Mirzapur, Uttar Pradesh), which fixes Indian Standard Time. Madhya Pradesh, in central India, is crossed by meridians in the high-70s to low-80s ° E, so the 80° E line runs through its eastern part.
Compare each town's approximate longitude with 80° E. Jabalpur (~79.95° E) sits almost exactly on the line, while Panna, Katni and Rewa lie progressively farther east. The 'nearest' is the one whose longitude differs least from 80°.
- Longitude is measured east/west of the Prime Meridian (0°); India's Standard Meridian is 82.5° E.
- Jabalpur is located at roughly 79.95° E — essentially on the 80° E line.
- Rewa lies around 81° E, the farthest east of the four options.
- The 80° E meridian passes through eastern Madhya Pradesh.
- Confusing longitude (east–west) with latitude (north–south)
- Picking the largest/most famous town without comparing coordinates
MPPSC asks the location of MP towns by latitude/longitude; UPSC frames it as time-zone or standard-meridian problems. Anchor: 4 minutes of time per 1° of longitude, Standard Meridian 82.5° E.
Consider the following statements: 1. Longitude of Jabalpur's location is between those of Indore and Bhopal. 2. Latitude of Aurangabad's location is between those of Vadodara and Pune. 3. Bangalore is situated more southward than Chennai. Which of these statements is/are correct?
- (a) 1 and 3
- (b) Only 2
- (c) 2 and 3
- (d) 1, 2 and 3
Answer(c) 2 and 3
Same concept — locating cities by longitude; this UPSC question turns on Jabalpur's longitude (~79.95° E), the very city that answers the MPPSC question about the 80° E meridian.
- practice — not a real PYQ
India's Standard Meridian, which determines Indian Standard Time, is:
- (a)80° E
- (b)82°30′ E
- (c)90° E
- (d)75° E
Answer(b) 82°30′ E (82.5° E) — it passes near Mirzapur, Uttar Pradesh.
- practice — not a real PYQ
By how much does local time change for every 1° of longitude?
- (a)1 minute
- (b)4 minutes
- (c)15 minutes
- (d)60 minutes
Answer(b) 4 minutes — 360° ÷ 24 h = 15° per hour, i.e., 4 minutes per degree.