81: Who of the following scientists proved that the stars with mass less than 1.44 times the mass of the Sun end up as White Dwarfs when they die?
(a) Edwin Hubble
(b) S. Chandrashekhar
(c) Steven Weinberg
(d) Stephen Hawking
82: The first writer to use Urdu as the medium of poetic expression was
(a) Amir Khusru
(b) Mirza Ghalib
(c) Bahadur Shah Zafar
(d) Faiz
83: What was the purpose with which Sir William Wedderburn and W. S. Caine had set up the Indian Parliamentary Committee in 1893 ?
(a) To agitate for Indian political reforms in the House of Commons
(b) To campaign for the entry of Indians into the Imperial Judiciary
(c) To facilitate a discussion on India's Independence in the British Parliament
(d) To agitate for the entry of eminent Indians into the British Parliament
84: The diameters of two circular coins are in the ratio of 1:3. The smaller coin is made to roll around the bigger coin till it returns to the position from where the process of rolling started. How many times the smaller coin rolled around the bigger coin ?
(A) 9
(B) 1.5
(C) 6
(D) 3
85: Quartizite is metamorphosed from
(a) Limestone
(b) Obsidian
(c) Sandstone
(d) Shale