question_answer 47)

  Two particles A1  and A2 of masses m1, m2 (m1 > m2) have the same de Broglie wave- length,      Then (a) their momenta are the same (b )their energies are the same (c) energy of A1 is less than the energy of A2 (d) energy of A1 is more than the energy of A2

Answer:

  As  or          or                           So             or .