This is a CSIR-NET December 2016 Part A question of Life Sciences, Physical Sciences.
Question discussed: Comparing numerical values, which of the following is different from the rest?
(1) The ratio of the circumference of a circle to its diameter.
(2) The sum of the three angles of a plane triangle expressed in radians.
(4) The net volume of a hemisphere of unit radius, and a cone of unit radius and unit height.
Discussed by – Christy Varghese