Question

find the wavelength of a tennis ball of mass 200g moving in the velocity of 10m/s

Answer 1

Answer:

lambda =h/mc

m=200g=200×10^-3 kg

v=10m/s

h=6.626×10^-34

now putting the values in formula

6.626×10^--34/200×10^-3 ×10

=3.313×10^-34