Question

A steel ball of mass 1kg is moving with a velocity 1 m/s. Then its de-Broglie wavelength is equal to

• A. $h$
• B. $\frac{h}{2}$
• C. $Zero$
• D. $\frac{1}{h}$

Answer 1

The correct option is A $h$

By using $\lambda =\frac{h}{mv}\Rightarrow \lambda =\frac{h}{1\times 1}=h$