Disguised unemployment:
Disguised unemployment is a type of unemployment where the number of people engaged in a particular work is more than required. In this type of unemployment, some workers are surplus and their removal does not affect the overall productivity or output. The given scenario at Rampur village where 10 people are doing the work that requires only 6 people is an example of disguised unemployment.

Explanation:
In the agricultural field at Rampur village, the work of weeding requires only 6 men. However, in this scenario, 10 people are involved in doing the same work. This means that there are 4 extra workers who are not actually required for the task. If these 4 workers are removed from the work, the overall productivity or output will remain the same as it was when all 10 people were employed.

Characteristics of disguised unemployment:
Disguised unemployment is characterized by the following key points:
1. Surplus labor: There are more workers engaged in a particular work than required.
2. No change in output: The removal of surplus workers does not affect the overall productivity or output.
3. Underutilization of labor: The additional workers are not able to contribute effectively to the work due to the limited scope of employment.

Reasons for disguised unemployment in agricultural fields:
1. Lack of alternative employment opportunities: In rural areas, where agriculture is the primary occupation, there is often a limited scope for alternative employment opportunities. As a result, more people are engaged in agricultural activities than required.
2. Fragmented land holdings: In many cases, land holdings in rural areas are small and fragmented. This leads to a situation where multiple family members are engaged in agricultural activities even if their labor is not fully utilized.
3. Lack of technology and modern farming practices: The use of outdated farming techniques and lack of mechanization in agriculture can result in the need for more labor than actually required.

Advantages of reducing disguised unemployment:
1. Increase in productivity: By removing surplus workers, the remaining workers can focus better on their tasks, leading to increased productivity.
2. Efficient resource allocation: The resources can be better allocated to other productive activities, leading to overall economic growth.
3. Cost savings: By reducing surplus labor, the cost of wages can be saved, which can be utilized for other developmental activities.

In conclusion, the employment situation at Rampur village, where 10 people are engaged in work that requires only 6 people, is an example of disguised unemployment. Disguised unemployment is characterized by surplus labor, no change in output when surplus workers are removed, and underutilization of labor. This type of unemployment is often observed in agricultural fields due to factors such as lack of alternative employment opportunities, fragmented land holdings, and outdated farming practices. Reducing disguised unemployment can lead to increased productivity, efficient resource allocation, and cost savings.