(c) William Cook
(d) Terry Edison
Ans: (d)
169. Who invented thermoscope an early form of thermometer? [MPPCS (Pre)
2011]
(a) Sir Christopher Wren
(b) Charles F Richter
(c) Beno Gutenberg
(d) Galileo
Ans: (b)
170. Who gave the theory of gravity? [MPPCS (Pre) 2011]
(a) Charles Newton
(b) Charles Babbage
(c) Issac Newton
(d) John Adams
Ans: (c)
171. Lenz"s law is directly related to :
(a) energy conservation
(b) mass conservation
(c) momentum conservation
(d) none of these
Ans: (a)
172. Cloudy nights are warmer than cloud free nights because of? [NDA 2010]
(a) greenhouse effect
(b) depletion in ozone layer
(c) infrared radiation
(d) land surface radiation
Ans: (d)
173. Who was the inventor of neutron? [UPPCS (Pre) 1995, 1996, JPCS (Pre)
2003]
(a) Rutherford
(b) Thomson
178