Question

Which formula may be used for the momentum of all particles, with or without mass?

a) p=mv; classical momentum formula.
b) p=hf; momentum for particles with mass.
c) p=h/λ; momentum for particles with or without mass.
d) p=E/c; momentum for massless particles only.

Answer 1

The formula for the momentum of all particles, with or without mass, is p = h/λ. This formula is known as the de Broglie wavelength formula and is used to calculate the momentum of particles. For particles with mass, the formula p = mv can also be used.

The correct formula for the momentum of all particles, with or without mass, is p = h/λ, which is option c.

Step-by-step explanation:

The correct formula for the momentum of all particles, with or without mass, is p = h/λ, which is option c.

This formula is known as the de Broglie wavelength formula and is used to calculate the momentum of particles, including those with and without mass.

For particles with mass, the formula p = mv (option a) can also be used to calculate their momentum.

The formula for the momentum of all particles, with or without mass, is p = h/λ. This formula is known as the de Broglie wavelength formula and is used to calculate the momentum of particles. For particles with mass, the formula p = mv can also be used.