First slide

Matter waves (DC Broglie waves)

Question

de-Broglie wavelength associated with a moving ball of mass 0.12 kg and moving at a speed of 20 m/s is

Moderate

Solution

$λ = \frac{h}{p} = \frac{6.6 \times 10^{- 34}}{0.12 \times 20} = 2.75 \times 10^{- 34} m$

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