Explanation: Anna Mani was a significant figure in the field of meteorology and physics in India. Born on August 23, 1918, in the erstwhile princely state of Travancore, which is now part of the state of Kerala, she made substantial contributions to the Indian Meteorological Department (IMD) and the World Meteorological Organization (WMO).
Travancore, where Anna Mani was born, was a princely state in the southern part of India, which later became part of the state of Kerala after India's independence. The region is known for its rich cultural heritage and contributions to science and education. Anna Mani's birthplace in Travancore is significant as it highlights the contributions of the region to the field of science.
Anna Mani's career in meteorology began after she graduated from the University of Travancore (now the University of Kerala) with a degree in physics. She later joined the IMD in 1948 and worked there until her retirement in 1977. During her tenure, she made significant advancements in the field, including the development of instruments for measuring solar radiation and the establishment of a network of solar radiation observatories across India.
The confusion around her birthplace and year might arise due to the historical context of Travancore and the broader region of Kerala. Travancore was a separate entity before the formation of the state of Kerala in 1956, and its history is often intertwined with that of the broader region. Therefore, it is essential to understand the historical context of the region to correctly identify Anna Mani's birthplace and year.
In summary, Anna Mani was born in 1918 in Travancore, which is now part of Kerala. This information is crucial for understanding her contributions to Indian science and the historical context of her birthplace. The correct answer is option B, as it accurately reflects the historical and geographical details of Anna Mani's birth.