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CBSE · Class 11 · Social Science

India — Location

Standard difficulty · 20 questions · 40 marks · Time: 37 minutes

Name: Date: Score: ____ / 40

Write full answers in Sections B and C. Answers are on the last page — try every question first!

Section A — Choose the correct answer8 × 1 = 8 marks
1.
India’s standard meridian is:
  1. 75°30′ E
  2. 90°30′ E
  3. 69°30′ E
  4. 82°30′ E
2.
What is India’s share of the world’s land surface?
  1. about 2.4 per cent
  2. 82°30′ E
  3. 5 hours 30 minutes
  4. 12 nautical miles from the coast
3.
What is meant by “nautical mile”?
  1. a narrow passage of water joining two seas
  2. the local time of the prime meridian, 0°
  3. the longitude whose local time is used for a whole country
  4. a sea mile of about 1.852 km
4.
When it is 16:00 by Indian Standard Time (82°30′ E), what is the local (sun) time at a place on 68°30′ E? (4 minutes per degree)
  1. 15:04
  2. 16:56
  3. 16:00
  4. 16:04
5.
Two places in India are 8° of longitude apart. How many minutes apart are their local (sun) times?
  1. 32 minutes
  2. 120 minutes
  3. 8 minutes
  4. 36 minutes
6.
It is 11:15 at Greenwich (GMT). What is the time in India (IST)?
  1. 05:45
  2. 16:45
  3. 16:15
  4. 17:15
7.
One nautical mile is about 1.852 km. About how many km is 48 nautical miles?
  1. 89.9 km
  2. 76.8 km
  3. 88.9 km
  4. 25.9 km
8.
Standard meridians are chosen in multiples of 7°30′, and each degree of longitude is 4 minutes of time. How far ahead of GMT is a standard meridian at 75° E?
  1. 4 h 30 min
  2. 5 h 30 min
  3. 5 h
  4. 10 h
Section B — Short answer8 × 2 = 16 marks
9.
Why does India need a standard meridian?
10.
Give India’s (a) area (b) standard meridian
11.
Explain each term: (a) strait (b) territorial waters
12.
When it is 12:00 noon IST, what is the local (sun) time at (a) 83° E (b) 82° E? (IST is the time of 82°30′ E; 4 minutes per degree)
13.
It is 02:45 IST in India. What is the time at Greenwich (GMT), and why is IST ahead of GMT?
14.
Convert to km (1 nautical mile ≈ 1.852 km): (a) 20 nautical miles (b) 36 nautical miles. Which lies within India’s territorial waters?
15.
What is each? (a) the Palk Strait (b) the Gulf of Mannar
16.
Place A is on 96° E and place B on 72° E. How many minutes apart are their local times, and where does the sun rise first?
Section C — Longer answers4 × 4 = 16 marks
17.
Does India need more than one standard time? Give your view with reasons.
18.
Match each with its meaning: (a) subcontinent (b) gulf (c) Greenwich Mean Time. Choose from: a big unit of land standing out distinctly from the rest of a continent; a large area of sea partly enclosed by land; the local time of the prime meridian, 0°.
19.
Suppose the sun rises at 05:00 local time at two places on the same latitude, one on 94° E and one on 84°30′ E. (a) How many minutes apart are their local times? (b) Express each sunrise in IST (82°30′ E). (c) Why does all of India use one time?
20.
A fishing boat is 21 nautical miles from India’s coast. (a) How many km is that (1 nautical mile ≈ 1.852 km)? (b) Is it within India’s territorial waters? (c) Give two advantages of India’s long coastline.
AmbifulWorksheets
Practice that never repeats
CBSE · Class 11 · Social Science

Answer key

India — Location · AW-11SS-GIL-2026-V1 · For parents — fold back or tear off before handing the sheet to your child.

QAnswerWorking
1(d) 82°30′ E—
2(a) about 2.4 per cent—
3(d) a sea mile of about 1.852 km—
4(a) 15:0414° × 4 = 56 min behind
5(a) 32 minutes8 × 4
6(b) 16:4511:15 + 5 h 30 min
7(c) 88.9 km48 × 1.852
8(c) 5 h75 × 4 = 300 min
9Local time changes with longitude by about two hours across the country; one standard time keeps all clocks the same.—
10(a) about 3.28 million sq km (b) 82°30′ E—
11(a) a narrow passage of water joining two seas (b) the belt of sea up to 12 nautical miles from the coast—
12(a) 12:02 (b) 11:58(longitude − 82.5) × 4 minutes from noon
1321:15; India lies east of Greenwich, and 82°30′ × 4 min = 5 h 30 min.02:45 − 5 h 30 min
14(a) 37.0 km (b) 66.7 km; neither (limit 12 nautical miles)20 × 1.852; 36 × 1.852
15(a) the narrow strait between India and Sri Lanka (b) the gulf between India and Sri Lanka—
1696 minutes; at place A, which is further east24° × 4
17Local time varies by nearly two hours across India; one time keeps the country together, though the east gets daylight much earlier, which some say favours a second zone.—
18(a) a big unit of land standing out distinctly from the rest of a continent (b) a large area of sea partly enclosed by land (c) the local time of the prime meridian, 0°—
19(a) 38 minutes (b) 94° E: 04:14 IST; 84°30′ E: 04:52 IST (c) One standard time keeps all clocks, transport and offices in step across the country.local time − (longitude − 82.5) × 4 min = IST
20(a) 38.9 km (b) no; the limit is 12 nautical miles (c) sea routes for trade, ports and fishing (also a moderate coastal climate).21 × 1.852