Related Questions

  1. The half life of a radioactive isotope ‘X’ is 20 years. It decays to another element Y
  2. A neutron is moving with a velocity u.It collides head on and elastically with an atom
  3. A soap bubble oscillates with time period T, which in turn depends on the pressure
  4. If the band gap between valence band and conduction band in a material is 5.0 eV,
  5. An electron of mass m and a photon have same energy E. The ratio of de-Broglie