Which of the following statements is true? A.The highest photon energy in the em

Question

Which of the following statements is true?

A.The highest photon energy in the emission spectrum of the hydrogen atom corresponds to the energy released when an electron makes a transition from n ? ? to the n = 1 state.

B.Niels Bohr explained the discrete emission spectrum of H by assuming special orbits in which there were an integral number of wavelengths in the orbit.

C.Because of wave-particle duality, a sharp transition between ray optics and diffraction is observed.

D.The de Broglie wavelength of a particle moving at a given velocity increases with its mass.

1.A and B.

2.A and C.

3.B and D.

4.B and C.

Explanation / Answer

Option (1) A and B is correct.

A.The highest photon energy in the emission spectrum of the hydrogen atom corresponds to the energy released when an electron makes a transition from n ? ? to the n = 1 state.

B.Niels Bohr explained the discrete emission spectrum of H by assuming special orbits in which there were an integral number of wavelengths in the orbit.

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