Question

The binding energy of deuteron  is 1.15 MeV per nucleon and an alpha particle  has a binding energy of 7.1 MeV per nucleon. Then in the reaction 

             

the energy Q released is 

Solution

Correct option is

23.8 MeV

Binding energy of .

Total binding energy of reactants = 2.3 + 2.3 = 4.6 MeV.

Binding energy of 

Therefore, Q = 28.4 – 4.6 = 23.8 MeV.

SIMILAR QUESTIONS

Q1

The orbital speed of the electron in the ground state of hydrogen is v. What will be its orbital speed when it is excited to the energy state –3.4eV. 

Q2

The ratio of the wavelengths of the longest wavelength lines in the Lyman and Balmer series of hydrogen spectrum is 

Q3

If a hydrogen atom at rest, emits a photon of wavelength , the recoil of the atom of mass m is given by

Q4

In an atom there are p photons, n neutrons and e electrons. For atoms of small mass, the relation between pn and e is   

Q5

Cal to protons ever attract each other?

Q6

How much energy is released when one amu is wholly converted into energy?

Q7

In the equation     

           ,  

The correct symbol for X is

Q8

The kinetic energy of a 300 K thermal neutron is

Q9

The energy released by the fission of one uranium atom is 200 MeV. The number of fissions per second required to produce 3.2 W of power is

Q10

What is the rest mass energy of an electron?