NCERT Solutions Class 11 Geography Chapter 3 Latitude Longitude and Time

NCERT Solutions for Class 11 Geography for Chapter 3 Latitude Longitude and Time

Exercise

(i) Which are the two natural points of references on the earth?

Answer: North and South Poles are the two natural points of references on the earth. The spinning of the earth on its axis from west to east provides these two natural points.

(ii) What is a great circle?

Answer: A Great Circle is a circle on the surface of the earth that divides the earth into two equal halves. For example, equator is the largest circle and divides the globe into two equal halves.

(iii) What are coordinates?

Answer: The latitudes and longitudes are commonly referred to as geographical coordinates as they provide systematic network of lines upon which the position of various surface features of the earth, can be represented.

(iv) Why does the sun appear to be moving from east to west?

Answer: The sun appear to be moving from east to west because the earth rotates from west to east over its axis and takes 24 hours to complete one rotation.

(v) What is meant by local time?

Answer: The time based on the meridian through a specific place, as a city, in contrast to that of the time zone within which the place is located is called local time.

2. Distinguish between latitudes and longitud

 Latitude Longitude Run from East-west, parallel to the equator Run from North to South Used to demarcate temperature zones Used to determine local time Lines are parallel to each other Lines converge at the poles The distance between the two latitudes is approximately 111 km The distance between the two longitude is maximum at equator, i.e., 111.3 km and minimum at poles , i.e., 0 km. Latitude measures up to 180 degrees, i.e., 90° N and - 90° S. Longitude measures up to 360 degrees

ACTIVITY

1. Find out the locations of the following places with the help of your atlas and write their latitudes and longitud

 Place Latitude Longitude Mumbai Vladivostok Cairo New York Ottawa Geneva Johannesburg Sydney

 Place Latitude Longitude Mumbai 19° 4' N 72° 52' E Vladivostok 43° 10' N 132° 0' E Cairo 30° 2' N 31° 14' E New York 40° 42' N 74° 0' W Ottawa 45° 25' N 75° 41' W Geneva 46° 12' N 6° 8' E Johannesburg 26° 12' S 28° 2' E Sydney 33° 52' S 151° 12' E

2
. What would be the time of the following cities if the time at Prime Meridian is 10 m.

Delhi, London, Tokyo, Paris, Cairo, Moscow

 Delhi 3:30 p.m. London 11:00 a.m. Tokyo 7:00 p.m. Paris 12:00 Noon Cairo 12:00 Noon Moscow 1:00 p.m.

Tags:

Click for more Geography Study Material

Latest NCERT & CBSE News

Read the latest news and announcements from NCERT and CBSE below. Important updates relating to your studies which will help you to keep yourself updated with latest happenings in school level education. Keep yourself updated with all latest news and also read articles from teachers which will help you to improve your studies, increase motivation level and promote faster learning

Keep your kids engaged during Lockdown

Kids are the Future of our Country! Outlines have changed and so should the formats of existence! It is the best time to teach our kids the pleasure of Self-Discipline, Self-Realization and Self-Control. To keep the future generation safe in such unpredictable...

Conduct of the practical work during the lockdown

CBSE has advised schools to follow the Alternative Calendar developed by NCERT to continue education during the lockdown through alternative modes to achieve learning outcomes. Schools have reportedly started using these calendars and other prescribed pedagogical...

Revised SOP preventive measures followed while conducting examinations

Revised SOP on preventive measures to be followed while conducting examinations to contain spread of COVID-19 issued by Ministry of Health & Family Welfare Examination centres are frequented by large number of students (as well as their parents) and staff till the...

×