Which of the following has the largest de-Broglie wavelength, given that all have equal velocity?

Question

Which of the following has the largest de-Broglie wavelength, given that all have equal velocity? (A) CO 2 molecule (B) NH 2 molecule (C) Electron (D) Proton

Tardigrade Admin · Accepted Answer

λ=( h / mv ) For same velocity, λ propto 1 / m Electron has the least mass, so its wavelength is maximum.

Q. Which of the following has the largest de-Broglie wavelength, given that all have equal velocity?

$C O_{2}$ molecule

$N H_{2}$ molecule

Electron

Proton

$λ = \frac{h}{m v}$
For same velocity,
$λ \propto 1/ m$
Electron has the least mass,
so its wavelength is maximum.

Q. Which of the following has the largest de-Broglie wavelength, given that all have equal velocity?

CO2​ molecule

NH2​ molecule

Electron

Proton

λ=mvh​ For same velocity, λ∝1/m Electron has the least mass, so its wavelength is maximum.

$C O_{2}$ molecule

$N H_{2}$ molecule

$λ = \frac{h}{m v}$
For same velocity,
$λ \propto 1/ m$
Electron has the least mass,
so its wavelength is maximum.