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Wave Optics

Question
CBSEENPH12038673

Two nuclei have mass numbers in the ratio 1: 3. What is the ratio of their nuclear densities?

Solution
Ratio of mass number in the nucleii, A1 :A2 = 1:3 

Since, the nuclear density is same for all nuclei and is independent of the mass ratio, therefore, 
∴   ρ12 = 1:1

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