Study the given table carefully and answer the questions that follow :
India – Trends of Urbanisation 1961-2011
Question: 1
During which decade, the net increase in number of towns/UAs is the lowest ?
Show Hint
Net increase refers to the absolute difference in count between two points in time.
Looking at the 'Number of Towns' column, the smallest jump occurs between 1961 and 1971.
Concept: • Net increase is calculated by subtracting the number of towns in the previous decade from the current decade.
• This indicates the pace of urban center creation over time.
Step 1: Calculate the increase for each decade from the table
\[
\begin{aligned}
1961\text{ to } 1971: & \text{ } 2,590 - 2,365 = 225
1971\text{ to } 1981: & \text{ } 3,378 - 2,590 = 788
1981\text{ to } 1991: & \text{ } 4,689 - 3,378 = 1,311
1991\text{ to } 2001: & \text{ } 5,161 - 4,689 = 472
2001\text{ to } 2011: & \text{ } 6,171 - 5,161 = 1,010
\end{aligned}
\]
Step 2: Identify the lowest value
By comparing the calculated increases, the value \(225\) is the lowest.
This corresponds to the decade 1961–1971.
Was this answer helpful?
0
0
Question: 2
Mention the net increase in number of towns/UAs during 1981-91.
Show Hint
The decade 1981–91 saw the highest absolute increase in the number of urban centers in the provided data.
This correlates with the highest decennial growth rate of urban population (46.14%).
• The net increase for a specific period is found by finding the difference between the values of the start and end years of that period.
Step 1: Extract values from the table
Number of towns in 1981 = \(3,378\)
Number of towns in 1991 = \(4,689\)
Step 2: Perform the subtraction
\[ \text{Net Increase} = 4,689 - 3,378 = 1,311 \]
The net increase in the number of towns/UAs during 1981–91 was 1,311.
Was this answer helpful?
0
0
Question: 3
Explain the decennial growth rate of urban population.
Show Hint
A high decennial growth rate indicates rapid migration from rural to urban areas.
Urbanization is a result of both natural growth and the reclassification of rural areas into towns.
• Decennial growth rate is the percentage increase in the population over a period of ten years.
• It is a vital indicator for measuring the pace of urbanization in a country.
Step 1: Define the calculation
It is calculated as: \[ \frac{P_2 - P_1}{P_1} \times 100 \] where \(P_2\) is current population and \(P_1\) is population ten years ago.
Step 2: Analyze the trends from the table
The table shows that the urban growth rate reached its peak in 1971–81 (46.14%) and has since shown a declining trend.
Even though the rate decreased to 31.08% in 2011, the absolute urban population continues to grow significantly.
