If $\mathrm{M_o}$ is the mass of an oxygen isotope $\mathrm{{ }_8 O^{17}, M_p}$ and $\mathrm{M_N}$ are the…

If $\mathrm{M_o}$ is the mass of an oxygen isotope $\mathrm{{ }_8 O^{17}, M_p}$ and $\mathrm{M_N}$ are the masses of a proton and a neutron respectively, the nuclear binding energy of the isotope is
  1. $\mathrm{(M_o-8 M_p) C^2}$
  2. $\mathrm{(M_o-8 M_p-9 M_N) C^2}$
  3. $\mathrm{M_o C^2}$
  4. $\mathrm{(M_{\mathrm{o}}-17 \mathrm{M}_{\mathrm{N}}) \mathrm{C}^2}$

Solution

Binding energy $=\left(\mathrm{M_o-8 M_P-9 M_N}\right) \mathrm{C^2}$

Asked in: JEE Main 2007

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