Wrong statement in connection with Davisson-Germer experiment isA. The inter-atomic distance in nickel crystal of the order of the de-broglie wavelength.B. Electrons of constant energy are obtained by the electron gunC. Nickel crystal acts as a three dimensional diffracting grating.D. Davission-Germer experimental is an inteference experiment.

Wrong statement in connection with Davisson-Germer experiment isA. The

1.	Wrong statement in connection with Davisson-Germer experiment isA. The inter-atomic distance in nickel crystal of the order of the de-broglie wavelength.B. Electrons of constant energy are obtained by the electron gunC. Nickel crystal acts as a three dimensional diffracting grating.D. Davission-Germer experimental is an inteference experiment.
Answer» Correct Answer - D

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In hydrogen atom, when electron jupms from second to first orbit, then enrgy emitted isA. `-13.6 eV`B. `-27.2 eV`C. `-6.8 eV`D. None of these
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