NCERT Class 11 Geography Chapter 26 Latitude, Longitude and Time

NCERT Class 11 Geography Chapter 26 Latitude, Longitude and Time Solutions to each chapter is provided in the list so that you can easily browse through different chapters NCERT Class 11 Geography and select need one. NCERT Class 11 Geography Question Answers Download PDF. NCERT Geography Class 11 Solutions.

NCERT Class 11 Geography Chapter 26 Latitude, Longitude and Time

Also, you can read the NCERT book online in these sections Solutions by Expert Teachers as per Central Board of Secondary Education (CBSE) Book guidelines. CBSE Class 11 Geography Solutions are part of All Subject Solutions. Here we have given NCERT Class 11 Geography Part I: Fundamentals of Physical Geography, Part II: Indian: Physical Environment, Part III: Practical Work in Geography. NCERT Class 11 Geography Notes, NCERT Class 11 Geography Textbook Solutions for All Chapters, You can practice these here.

Latitude, Longitude and Time

Chapter: 26

GEOGRAPY [ PART – III ]

VERY SHORT ANSWER TYPE QUESTIONS

Q.1. What are parallels of latitude?

Ans. Parallels of Latitude: The parallels of latitude refer to the angular distance in degrees, minutes and seconds of a point north or south of the Equator. Lines of latitude are often referred to as parallels.

Q.2. What are the meridians of longitude?

Ans. Meridians of Longitude: The meridians of longitude refer to the angular distance, in degrees, minutes and seconds of a point east or west of the Prime (Greenwich) Meridian. Lines of longitude are often referred to as meridians.

SHORT ANSWER TYPE QUESTIONS

Q.1. Which are the two natural points of reference on the earth?

Ans. North Pole and South Pole.

Q.2. What is the great circle?

Ans. Equator is the great circle.

Q.3. What are coordinates?

Ans. Latitudes and longitudes are the coordinates.

Q.4. Why does the sun appear to be moving from east to west?

Ans. The sun appears to be moving from east to west because the earth rotates from west to east.

Q.5. What is meant by local time?

Ans. The simple old way of determining time was adjust the clock at noon when the sun would cross the local meridian and the shadows would be at their shortest. Time calculated by position of the sun at noon of a given place is called local time.

LONG ANSWER TYPE QUESTIONS

Q.1. Explain standard time.

Ans. In order to maintain uniformity of time as far as possible within the territorial limits of a country, the time at central meridian of the country is taken as the standard meridian and its local time is taken as the standard time for the whole country. The standard meridian is selected in a manner that it is divisible by 15° or by 7°.30′ so that the difference between its standard time and Greenwich mean time may be expressed as multiples of an hour or half an hour.

Q.2. Distinguish between latitudes and longitudes.

Ans.

Latitudes	Lomgitudes
1. The imaginary lines running east-west are known as parallels of latitude.	1. The vertical lines running north-south join the two poles are called meridians of longitude.
2. These are circular and make a complete circle.	2. They are halves of the great circle.
3. They run parallels each other and to the equator.	3. They all meet at poles.
4. All the parallels get smaller in size to their distances from the equator towards the poles.	4. They are not parallel.

Q.3. Distinguish between local time and standard time.

Ans.

Local time	Standard time
1. Local time of a place is the time of its meridian.	1. Standard time is the time of central meridian of an area.
2. Each place has its own local time.	2. All places have a uniform time.
3. When it is noon the local time is 12 O’clock.	3. It has no relation with moon or height of the sun.
4. All places on a meridian has same local time.	4. All places in same region have the same standard time.
5. The place in the east are ahead of west in time. For 1° longitude there is a difference of 4 minutes.	5. There is no change in time. So it is known as standard time.

Q.4. The local time at New York (75°W) is 8.30 P.M. on Wednesday. What will be time at Delhi (77°E)?

Ans. 

New york	Greenwich	New Delhi
75°W	0	77°E

Time – 8.30 P.M.

Wednesday East-Gain-Add

Longitude of New York = 75°W

Longitude of New Delhi = 77°E

Difference in the longitude = 152°

Difference in time = 152 × 4