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Questions  

When a solid metal sphere is heated, its volume increases by 50cc and surface area increases by 25 cm2. Radius of that sphere is 

a
4 cm
b
2 cm
c
1 cm
d
8 cm

detailed solution

Correct option is A

Δv  ΔA=v1γΔtA1βΔt

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Similar Questions

A vessel having coefficient of cubical expansion γg contains liquid Of coefficient of real expansion rR up to certain level. When Vessel
Is heated, match column I and column II.
 

 Column - I Column - II
aγg<γRpliquid level rises continuously from beginning
bγg=γRqliquid level falls continuously from beginning
cγg>γRrliquid level remains same 
dγg=0sliquid level first falls and then rises 
 
 abcd
1srqp
2srpq
3qrsp
4rqps


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