The Arabic work of al-Biruni that gave an account of the subcontinent is called __________.
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A circle and a square have same area. The ratio of the side of the square to the radius of the circle will be:
If one angle of a triangle is equal to half the sum of the other two equal angles, then the triangle is
Who invented first working laser?
Who Invented the 3-D printer?
Which of the following is India's highest civilian award?
Highest Civilian Honour received by Shri Shri Ravi Shankar is ___________.
Amir Khusrow was the disciple of whom?