I personal in nature. With reference to the letter above, write a
similar letter from Raman, who stays in a
hostel, to his best friend, telling him about how
he spends his time during his exams.

Based on the passage, the most logical conclusion one could draw about the author of "Marie Curie and the Discovery of Radioactivity" is that The author thinks highly of Marie Curie.

Explanation:

This excerpt from "Marie Curie and the Discovery of Radioactivity" shows in the words that the author uses that they have a high impression about Marie Curie, principally with the sentence "she possessed the most important quality of a successful scientist" which talks about her being the right person to do this job in a successful way.