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- What is the 'MULTIPLICATION FACTOR' of a nuclear reactor?
- A photon and an electron

have same energy E. What is the ratio of their wavelenght?

3. Why GaAs is better than Si for making solar cells?

Hi Anandita!

1. The neutron multiplication factor of a nuclear reactor is the average number of neutrons from one fission which causes another fission.

2. Let λ_{e} be the wavelength of electron and λ_{p }be the wavelength of photon.

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