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```        the radius of a nucleus of mass no. 16 is 3 Fermi.Find the radius of the nucleus of mass no. 128?
```
8 years ago

Ramesh V
70 Points
```										Average radius if nucleus is given by:
R = R0A1/3       A:mass number    R0 = 1.1x10-15m =1.1 fermi
so, R1/R2 = (A1/A2)1/3
given R1 = unknown ,    R2 = 3 fm  , A1 = 128  ,      A2 = 16
So, R1 = 2*(128/16)1/3
R1 = 6 fermi
---
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```
8 years ago
Ramesh V
70 Points
```										A small mistake from above solution
its

So, R1 = 3*(128/16)1/3
R1 = 6 fermi

```
8 years ago
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