National Science Olympiad Forum By SOF Olympiad Trainer - Page 9

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Subject :NSO    Class : Class 1

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Subject :NSO    Class : Class 4

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Class : Class 4
C is the answer

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Subject :NSO    Class : Class 10

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Subject :NSO    Class : Class 8

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Class : Class 8

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Class : Class 8

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Subject :NSO    Class : Class 5

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Subject :NSO    Class : Class 10

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Subject :NSO    Class : Class 9

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Subject :NSO    Class : Class 3

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Subject :NSO    Class : Class 7

A student took an iron rod and a wooden rod and wrapped each of them in a piece of paper. These were then heated as shown. It was found that the paper around the iron rod does not burn whereas the one around the wooden rod catches fire. It is because


A Candle, in case of iron rod, is nearer to the paper
B Wood being a bad conductor of heat, takes away all the heat
C Iron being a good conductor of heat, conducts away the heat given to the paper
D Paper, in first case, is thicker.


Ans 1:

Class : Class 7
C

Ans 2:

Class : Class 7
B

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Class : Class 7
c

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Subject :NSO    Class : Class 3

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Class : Class 3
D

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