Q.

Frank and Hertz experiment proves that

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a

light moves in the form of waves as well as particles

b

the whole of the positive charge of the atom is concentrated in the nucleus

c

the energy states of an atom are quantized

d

the electron does not radiate energy, while moving in an orbit

answer is C.

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Detailed Solution

Frank and Hertz’s experiment demonstrated the existence of excited states in mercury atoms. It confirms the prediction of quantum theory that electrons occupy only discrete, quantized energy states

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Frank and Hertz experiment proves that