Question

23 15 An electron and a positron are having same kinetic energy. The ratio of their de-Broglie wavelengths will be (1) 2:1 (2) 1:2 (3) 1:1 (4) 1:2​

Answer 1

Answer:

As an electron has a smaller mass than a proton, an electron an electron has larger de-Broglie wavelength than a proton for the same kinetic energy.