TS PSC Group 1 Services Prelims 2011 Paper

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Question : 187 of 200
 
Marks: +1, -0
Which one of the following is correctly matched?
A) Dempster's mass spectrograph - Masses of isotopes
B) Cathode ray oscilloscope - Masses of atom
C) Coolidge tube - Solar spectrum
D) Cyclotron - Thermal conductivity
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