Identifying ISRO's Experimental Satellite

The question asks to identify which among the given ISRO satellites is classified as an experimental satellite.

• Experimental Satellites are typically designed for research, testing new technologies, or specific scientific missions, often serving educational purposes as well.
• YOUTHSAT: This satellite was a joint project between ISRO and EADS Astrium, primarily designed for atmospheric studies and promoting space science education among students. Its dual payload and focus on research and education mark it as an experimental satellite.
• RESOURCESAT - I: This is an Indian Remote Sensing (IRS) satellite series focused on providing data for natural resources management and surveys. It is an application-oriented satellite.
• SCATSAT - I: This satellite carries a scatterometer payload to provide data for weather forecasting and climate studies, making it an application-focused satellite for meteorological purposes.
• RISAT - I: This is a Radar Imaging Satellite designed for all-weather, day-and-night imaging capabilities, primarily used for applications like agriculture, disaster management, and surveillance. It is an application satellite.

Based on their primary objectives, YOUTHSAT stands out as the experimental satellite among the options provided.

Conclusion: YOUTHSAT is ISRO's experimental satellite.