Why de broglie waves associated with a moving football are not visible?

De-broglie wavelength is given by : $\lambda $ = h/mv

where m is the mass of the object.

h = planks' constant =6.66×10

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Since wavelength is inversely proportional to the mass of the object which is too large and h is also very small therefore wavelength will be very small compared to the size of the object.

Hence wavelength of the moving ball can not be seen.

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