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De Broglie's Hypothesis

A boy weighin...

Question

A boy weighing $20 K g$ is running with a speed of $18 k m / h r$ . What is his de-Broglie wavelength?

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Solution

18 km /hr = 5 m/s
De broglie wavelength ( $λ$ ) $= h / m v$
substituting the value in above equation
$λ = \frac{6.626 \times 10^{- 34}}{20 \times 5}$
$= 6.626 \times 10^{- 36}$

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