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Question
Two marks on a glass rod, 10 cm apart, are found to increase their distance by 0.08 mm, when the rod is heated from 0∘C to 100∘C. A flask made of the same glass as that of rod measures a volume 1000 c.c. at 0∘C. The volume, it measures at 100 C in c.c. is :
Two marks on a glass rod, 10 cm apart, are found to increase their distance by 0.08 mm, when the rod is heated from 0∘C to 100∘C. A flask made of the same glass as that of rod measures a volume 1000 c.c. at 0∘C. The volume, it measures at 100 C in c.c. is :
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Solution
The correct option is D 1002.4
In this case, change in length =0.008 cm =r1αdt=10α100
so, α=8×10−6/∘ C
So, γ=24×10−6/∘ C
Now, V2=V1(1+γdt)
Putting the values we get, V2=1002.4 cc
In this case, change in length =0.008 cm =r1αdt=10α100
so, α=8×10−6/∘ C
So, γ=24×10−6/∘ C
Now, V2=V1(1+γdt)
Putting the values we get, V2=1002.4 cc
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