916: An astronaut weighing 100 kg fires a bullet weighing 1 kg with a gun of 10 kg at the speed of 50 metres/second. What will be the recoil velocity of the gun ?

(a) 5 cm/s

(b) 50 cm/s

(c) 0.5 cm/s

(d) 0.05 cm/s
917: The New Exim Policy announced in 1992, is for a period of

(a) 3 Years

(b) 4 Years

(c) 7 Years

(d) 5 Years
918: Under which Article of the Indian Constitution did the President make a reference to the Supreme Court to seek the Court's opinion on the Constitutional validity of the Election Commission's decision on deferring the Gujarat Assembly elections (in the year 2002)?

(a) Article 142
(b) Article 143
(c) Article 144
(d) Article 145
919: Which of the following groups represents the correct order of four types of teeth in human beings?

(a) Incisors, premolars, molars, canines

(b) Incisors, canines, premolars, molars

(c) Molars, canines, incisors, premolars

(d) Canines, incisors, molars, premolars
920: The people of Hong Kong have come mostly from

(a) Vietnam

(b) China

(c) Cambodia

(d) Thailand