The great mathematician and astronomer of the Gupta period, Aryabhatta, is credited with
1. discovery of earth's rotation on its axis
2. using the concept of zero
3. discovery of gravitational force of earth
4. discovery of the cause of eclipse being the earth's shadow on the moon
Correct Answer: Part of solved Guptas and Post Gupta questions and answers :
General Knowledge >> History >> Guptas and Post Gupta