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

The kinetic energy of a fast-moving particle of mass $1 \times 10^{-31}\text{ kg}$ is associated with a de Broglie wavelength $63\text{ nm}$ is ($h = 6.3 \times 10^{-34}\text{ Js}$)}

The de Broglie wavelength associated with an electron accelerated by a potential of 64 V is ____.

A sub-atomic particle of mass $6.63\times10^{-31}\ \text{kg}$ is moving with a velocity of $1\times10^{6}\ \text{m s}^{-1}$. What is the de Broglie wavelength (in nm) associated with it ($h=6.63\times10^{-34}\ \text{J s}$)?

A sub-atomic particle of mass \(2.2 \times 10^{-2} \, kg\) is moving with a velocity of \(3.0 \times 10^5 \, ms^{-1}\). What is its de Broglie wavelength? (Planck's constant \(h = 6.6 \times 10^{-34} \, Js\))

Two particles A and B of same mass have their de Broglie wavelengths in the ratio $\lambda_A : \lambda_B = k : 1$. Their potential energies $U_A : U_B = 1 : k^2$. The ratio of their total energies $E_A : E_B$ is