766: The basic reason for the extraordinary sparkle of a suitably cut diamond is that
(a) it has a very high transparency
(b) it has a very high refractive index
(c) it is very hard
(d) it has well-defined cleavage planes
767: Ashtapradhan was a Council of Ministers
(a) in the Gupta Administration
(b) in the Chola Administration
(c) in the Vijayanagar Administration
(d) in the Maratha Administration
768: Which one of the following parts of the pitcher plant becomes modified into a pitcher ?
(a) Stipule
(b) Stem
(c) Petiole
(d) Leaf
769: The Swaran Singh Committee considered the question of
(a) more autonomy to Punjab on the model of Jammu & Kashmir.
(b) the suitability of the Presidential form of government for India.
(c) the precedence of the Directive Principles over Fundamental Rights.
(d) administrative reforms
770: Maximum production of paddy per unit water consumption can be best achieved in a:
(a) Non-porous soil
(b) Porous soil
(c) Impervious soil
(d) Soil that allows slow percolation