| Human Capital | Physical Capital |
|---|---|
| It refers to the stock of skills, knowledge, and abilities possessed by individuals. | It refers to man-made goods used for further production like machinery, tools, and buildings. |
| Increases productivity by improving human efficiency. | Increases productivity by providing means of production. |
| Intangible in nature. | Tangible in nature. |
On the basis of the given image, explain the source of human capital formation which may contribute to the economic growth in India. 
(a) (i) Distinguish between human capital and physical capital.
(ii) Define Sustainable Development.
OR
(b)
(i) Describe briefly the importance of micro-credit programmes in Rural India.
(ii) State any one strategy involved in attaining sustainable development in India.

A ladder of fixed length \( h \) is to be placed along the wall such that it is free to move along the height of the wall.
Based upon the above information, answer the following questions:
(iii) (b) If the foot of the ladder, whose length is 5 m, is being pulled towards the wall such that the rate of decrease of distance \( y \) is \( 2 \, \text{m/s} \), then at what rate is the height on the wall \( x \) increasing when the foot of the ladder is 3 m away from the wall?