Q21.
With reference to the scientific progress of ancient India, which of the statements given below are correct? 1. Different kinds of specialized surgical instruments were in common use by 1st century AD. 2. Transplant of internal organs in the human body had beginning of 3rd century AD. 3. The concept of sine of an angle was known in 5th century AD. 4. The concept of cyclic quadrilaterals was known in 7th century AD. Select the correct answer using the codes given below:
Answer
D
Explanation
All four statements are correct. (1) Sushruta in his Sushruta Samhita (1st century AD) described specialized surgical instruments. (2) The first reasonable account of early transplants deals with skin transplantation — the Indian surgeon Sushruta in the 2nd century BC used autografted skin transplantation in nose reconstruction rhinoplasty. Internal organ transplant concepts began by the 3rd century. (3) Aryabhata in the 5th century AD introduced the concept of sine. (4) Brahmagupta in the 7th century AD developed the concept of cyclic quadrilaterals.