Answer:
λ = 1.72 x 10⁻³⁴ m
Explanation:
given,
mass of the tennis ball = 60 g
= 0.06 Kg
velocity of good serve = 230 Km/h
1 km/h = 0.278 m/s
230 km/h = 230 x 0.278
= 63.94 m/s
wavelength,
[tex]\lambda=\dfrac{h}{p}[/tex]
p is the momentum of the particle, m v
h is the planks constant
h = 6.6 x 10⁻³⁴ m².kg/s
[tex]\lambda=\dfrac{6.6\times 10^{-34}}{mv}[/tex]
[tex]\lambda=\dfrac{6.6\times 10^{-34}}{0.06\times 63.94}[/tex]
λ = 1.72 x 10⁻³⁴ m
The wavelength of the tennis after a good serve is equal to λ = 1.72 x 10⁻³⁴ m
