Atoms and Nucle...

In nuclear reactions, we have the conservation of

A gamma ray photon creates an electron-positron pair. If the rest mass energy of an electron is 0.5 MeV and the total K.E. of the electron-positron pair is 0.78 MeV, then the energy of the gamma ray photon must be

Which of the following statements is true?

In a fission process, nucleus A divides onto two nuclei B and C, their binding energies being E_a E_band E_crespectively. Then

A nuclear bomb exploded 200 km above the surface of moon. The sound of explosion on the moon

Fast neutrons can easily be slowed down by

γ-rays radiation can be used to create electron-positron pair. In this process of pair production, γ-rays energy cannot be less than

A reaction between a proton and ₈O¹⁸that produces ₉F¹⁸ must also liberate

In the nuclear reaction ₉₂U²³⁸→_ZTh^A +₂He⁴, the values of A and Z are

If 200 MeV energy is released in the fission of a single U²³⁵ nucleus, the number of fissions required per second to produce 1 kilowatt power shall be (Given 1 eV = 1.6 × 10^–19 J)