The Bohr radius is given by, .Verify that the RHS has dimensions of length.

Calculate the Q-values of the following fusion reactions:

(a)

(b)

(c)

Atomic masses are = 2.014102 u, = 3.016049 u, = 3.016029 u, = 4.002603 u.

Calculate the energy that can be obtained from 1 kg of water through the fusion reaction

²H + ²H →³H + p.

Assume that 1.5 × 10^–2% of natural water is heavy water D₂O (by number of molecules) and all the deuterium is used for fusion.

Find the wavelength of the radiation emitted by hydrogen in the transitions A. n=3 to n=2, B. n=5 to n=4 and

C. n=10 to n=9.

Calculate the smallest wavelength of radiation that may be emitted by A. hydrogen B. and C.