A history student is asked to make a video based on the research that he or she is doing on the Mughal dynasty of India. This video would be a blank source.

This video would be a secondary source.

Explanation:

As you can see in the question above, the student will make a video based on sources of research on the Mughal dynasty of India. This video will be a secondary source.

Secondary sources are documents that expose information that was formulated through access to other sources. This information is established through analyzes, interpretations, readings, evaluations and syntheses of other documents.