The time of a place depends on the longitude that passes through it. Therefore, the standard time for each country is usually taken as the time of the central meridian that passes through it. India has a vast longitudinal extent. … Thus, we need a standard meridian for the country.
Why is standard meridian important for a country?
standard meridian is useful for a country because it shows and fixes a particular time for the country. A country may have many longitudes in between and there is a time gap of 4 minutes between each longitude. … therefore standard meridian should be there in each country for the equal time.
What do you mean by Standard meridian Class 9?
Standard Meridian is the meridian (longitude)which is used to describe time of a country , it should be the same for the whole country and all the places in a country should follow this same time.
What is meant by the Indian Standard Time What is its importance class 9?
India has the IST as it’s standard time because if it wouldn’t have been there, the country would have difference of 2 hours (as India is a large country and has a large East-west extent — there’s a difference of 2 hours from Gujarat in the west to Assam in the east). Hence, IST is an important meridian of longitude.
What is monsoon Class 9?
Answer: The seasonal reversal in wind direction during a year is called monsoon. Monsoon tends to have ‘breaks’ in rainfall; which means that there are wet and dry spells in between. The monsoon rains take place only for a few days at a time and then come the rainless intervals.
What does standard meridian mean?
Standard Meridian is the longitude which is used to describe time of a country. It ideally should be the same for the whole country and all the places in a country should follow this same time. The standard meridian of India is 82.5 ° E and it passes through Mirzapur in Uttar Pradesh.
What is the use of standard meridian time?
Answer: Standard time is the synchronization of clocks within a geographical area to a single standard time, rather than using solar time or a locally chosen meridian (longitude) to establish a local mean time standard.
Why do we need a standard meridian to India where is it located what is its significance?
We need a standard meridian for India because there is a time lag of about 2 hours between Gujarat and Arunachal Pradesh. To avoid confusion of time in different states , India adopted a standard meridian which is 82 degrees 30 E and it passes through Mirzapur in Uttar Pradesh.
What is standard time class 9th?
Local time. Standard time. Local time indicates the time of a place determined on the basis of apparent movement of the sun. Standard time refers to the fixed time for places falling in the same meridian, set in a country by law. Changes continuously with the change in longitude.
What is the other name of Standard meridian?
Another name for a meridian is longitude. Meridians are lines of longitude that are drawn from the North Pole to the South Pole.
How standard meridian is calculated?
To find the time meridian of a country, take the westernmost longitude and the easternmost longitude of that country, take the mean, and find the nearest multiple of 7.5 degree. As India’s longitudinal extent is from 68° 7′ 53″ E to 97° 24′ 47″ E. Nearest multiple of 7.5° is 82.5°.
Why is the Indian Ocean named after India?
The Indian Ocean is named after India because of its strategic location at the head of the ocean from ancient times and its long coastline which is longer than any other country in the Indian Ocean rim.
What is importance of standard time?
The main importance of standard time is that it helps in organising a uniform schedule for transport like railways and airways. It cuts down on costs that would be otherwise incurred on adjusting to different time schedules and the subsequent loss of time.