Q. The ancient Indian text Panchasiddhantika deals with the 5 principles of which among the following?
Answer: Astronomy
Notes: The Panchasiddhantika is an ancient Indian text written by Varahamihira which outlines five main principles of Astronomy. The text presents three vital branches of astronomy that were being studied during its time, including astronomy and mathematics, as well as astrology. These studies were crucial in paving the way for future astronomical discoveries and understanding the celestial mechanics.