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Question Paper CDS-2010-2


NextQ.[2]
Q .1-
गर्म पानी के ऊष्‍णोत्‍स (गीजर) के अन्‍दर का आस्‍तर ताम्र का क्‍यों बना होता है?
ताम्र की ऊष्‍माधारिता निम्‍न है
ताम्र की विद्युत चालकता उच्‍च है
ताम्र, भाप के साथ अभिक्रिया नहीं करता है
ताम्र, ऊष्‍मा और विद्युत दोनों का सुचालक है

 
 
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