practise problems Flashcards
1
Q
What is the de Broglie wavelength formula?
A
λ = h / p, where λ is the wavelength, h is Planck’s constant, and p is the momentum.
2
Q
True or False: The de Broglie wavelength increases with increasing momentum.
A
False
3
Q
Fill in the blank: The de Broglie wavelength of a particle is inversely proportional to its ______.
A
momentum
4
Q
A particle has a momentum of 4.0 kg·m/s. What is its de Broglie wavelength if Planck’s constant is 6.626 x 10^-34 Js?
A
1.6565 x 10^-34 m
5
Q
Multiple choice: What happens to the de Broglie wavelength if the mass of a particle is doubled? A) It remains the same B) It decreases C) It increases
A
B) It decreases
