Question bank/JEE Main/Physics

When an electron of hydrogen like atom jumps from a higher energy
level to lower energy level, then

Aangular momentum of the electron about nucleus remains constantBkinetic energy increasesCde-Broglie wavelength, associated with motion of electron
increasesDnone of the above

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Angular momentum [IMAGE] Kinetic energy [IMAGE] De-Broglie wavelength [IMAGE] So as v increases [IMAGE] decreases.

Source: Grass-G / P-15 Physics paper 11 Nov.docx