List of top Physics Questions on de broglie hypothesis asked in KEAM

An electron and a proton possess same kinetic energy. If the de Broglie wavelengths of the electron and the proton are $\lambda_e$ and $\lambda_p$ respectively, identify the CORRECT relation.
For the same kinetic energy, the de Broglie wavelengths associated with particles of different masses are
The de Broglie wavelength of a particle of mass m and kinetic energy E is given by
The ratio of the respective de Broglie wavelengths of two particles with kinetic energy of 0.02 eV and 2 eV is ________.
If a particle is moving with a momentum of (2 × 1010) h kg·m/s, then the de Broglie wavelength associated with it (in angstrom) is (where h is Planck's constant)
The ratio of the wavelength of two particles with energy $ E $ and $ 3E $ respectively, is:
The number of photons emitted per second by a $60\, W$ source of monochromatic light of wavelength $663\, nm$ is $ (h=6.63\times {{10}^{-34}}Js) $
The de-Broglie wavelength and kinetic energy of a particle is $2000 \,?$ and $1\, eV$ respectively. If its kinetic energy becomes $1\, MeV$, then its de Broglie wavelength