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Q.

The nuclear radius of a nucleus with nucleon number 16 is 3×10-15 m. Then, the nuclear radius of a nucleus with nucleon number 128 is

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a

4.5 × 10−15m

b

3 × 10−15m

c

1.5 × 10−15m

d

6 × 10−15m

answer is C.

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Detailed Solution

 R ∝ A13

⇒R2R1 = A2A113=1281613=2

⇒R2=2×3×10-15=6×10-15 m

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