Question

A material particle with a rest mass $m_0$ is moving with a velocity of light c. Then determine the wavelength of the de Broglie wave associated with it is.

• A. $\left(h/m_{0}c\right)$
• B. zero
• C. $\infty$
• D. $\left(m_{0}c/h\right)$

Answer 1

The correct option is A $\left(h/m_{0}c\right)$

A

The de Broglie wavelength is

$\lambda =\frac{h}{p}=\frac{h}{mv}$

Where $h$ = planks constant

$m$ = rest mass

$v$ = Velocity

Here $m_o$is the rest mass and $c$ is the velocity. So the de Broglie wavelength is

$\lambda =\frac{h}{m_{o}c}$