De Broglie Relationship MCQ - Practice Questions with Answers

The de-Broglie wavelength of a particle of mass 6.63 g moving with a velocity of 100 ms^-1 is: 

Calculate the wavelength (in nanometre) associated with a proton moving at 1.0 x 10³ ms^-1 (Mass of proton = 1.67 × 10^-27 kg and h = 6.63 × 10^-34 Js)

The de Broglie wavelength associated with particle of mass $10^6 \mathrm{~kg}$ moving a velocity of $10 \mathrm{~cm} / \mathrm{s}$ is

A 0.66 kg ball is moving at a speed of 100 m/s. The associated wavelength will be (h = 6.6 x 10^-34 Js)

The de Broglie wavelength of a tennis ball of mass 60g moving with a velocity of 10  metres per second is approximately