Which statement (s) is/are correct ?

1.	Which statement (s) is/are correct ?
Answer» Ratio of De-broglie wave lentghs of ELECTRONS and proton moving with same speed is 1:1836 Particles moving with same kinetic energy POSSESS same De-Broglie wave LENGTH Wave length of electrons in `2^(nd)` orbit is more than in `1^(st)` orbit of H-atom Circumference of orbit in GIVEN by the product of PRINCIPLE quantum number of wave length of electron Answer :C::D

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