Home
Class 12
PHYSICS
A proton and an electron have same kinet...

A proton and an electron have same kinetic energy. Which one has greater de-Broglie wavelength and why ?

Text Solution

Verified by Experts

An electron has the larger wavelength.
Reason : de-Broglie wavelength in terms of kinetic energy is `lamda=(h)/(sqrt(2m E_(k)))alpha=(1)/(sqrt(m))` for the same kinetic energy.
As an electron has a smaller mass than a proton, an electron has larger de-Broglie wavelength than a proton for the same kinetic energy.
Promotional Banner

Topper's Solved these Questions

  • XII BOARDS

    XII BOARDS PREVIOUS YEAR|Exercise SET - I|30 Videos

  • XII BOARDS

    XII BOARDS PREVIOUS YEAR|Exercise SET - II (Delhi Board)|8 Videos

  • XII BOARDS

    XII BOARDS PREVIOUS YEAR|Exercise PHYSICS (Theory) [SET - II]|6 Videos

  • SAMPLE PAPER 2019

    XII BOARDS PREVIOUS YEAR|Exercise SECTION D|6 Videos

Similar Questions

Explore conceptually related problems

A proton and an electron have same velocity. Which one has greater de-Broglie wavelength and why?

If a proton and an electron have the same kinetic energy, which has the longer de Broglie wavelength?

An electron is having a kinetic energy of 50 eV. Its de-Broglie wavelength is

An electron, an alpha -particle and a proton have the same kinetic energy. Which of these particles has the largest de-Broglie wavelength?

An electron and a proton have same kinetic energy Ratio of their respective de-Broglie wavelength is about

An electron is having a kinetic energy of 50 eV. Its de broglie wavelength is