# The de - Broglie wavelength associated with the electron in the n=4 level is : Option 1)  two times the de-Broglie wavelength of the electron in the ground state   Option 2)   four times the de-Broglie wavelength of the electron in the ground state Option 3) half of the de-Broglie wavelength of the electron in the ground state   Option 4) 1/4th of the de-Broglie wavelength of the electron in the ground state

As we learnt in

De - Broglie wavelength -

- wherein

From debroglie equation:

(1)

In ground state n = r  in  n = 4,

Correct option is (2)

Option 1)

two times the de-Broglie wavelength of the electron in the ground state

This is an incorrect option.

Option 2)

four times the de-Broglie wavelength of the electron in the ground state

This is the correction.

Option 3)

half of the de-Broglie wavelength of the electron in the ground state

This is an incorrect option.

Option 4)

1/4th of the de-Broglie wavelength of the electron in the ground state

This is an incorrect option.

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