A cricket ball of mass is bowled so that its centre of mass moves at

PHYSICS · Multi-part · A Level · Physics · Particles and radiation · Particles and radiation

Problem

A cricket ball of mass

145\,\text{g}

is bowled so that its centre of mass moves at

126\,\text{km\,h}^{-1}

. Answer the following: (a) Calculate the de Broglie wavelength associated with the ball. (b) Express the result of part (a) in the form

10^{n}\,\text{m}

, stating the value of the exponent

n

. (c) The approximate radius of an atomic nucleus is

1\,\text{fm}

(

1\,\text{fm}=10^{-15}\,\text{m}

). Compare the two length scales and comment on the possibility of observing wave properties for the ball.