Exams › NEET › Physics

As Nx/Ny = 1/7 (Given), age of the rock is t = 3T = 3 × 1.4 × 10⁹ yrs = 4.2 × 10⁹ yrs.

1. Nx/Ny = 1/7
2. Nx + Ny = 1/8 × (1/2)^3
3. t = 3T = 3 × 20 = 60 years
4. t = 3 × 20 = 60 years

Correct answer: Nx/Ny = 1/7

Solution

The given ratio Nx/Ny = 1/7 is explicitly stated in the question, making option A the correct answer. The other options are either irrelevant or incorrect based on the given data.

Related NEET Physics questions

• Two nuclei have their mass numbers in the ratio of 1 : 3. The ratio of their nuclear densities would be:
• If radius of the 27/13 Al nucleus is taken to be R_Al, then the radius of 125/53 Te nucleus is nearly:
• If the nuclear radius of 27/13 Al is 3.6 Fermi, the approximate nuclear radius of 64/29 Cu in Fermi is:
• The radius of germanium (Ge) nuclide is measured to be twice the radius of 9/4 Be. The number of nucleons in Ge are:
• If the nucleus 27/13 Al has nuclear radius of about 3.6 fm, then 125/32 Te would have its radius approximately as:
• The nuclei of which one of the following pairs of nuclei are isobars?

⚔️ Practice NEET Physics free + battle 1v1 →