Question

a cricket ball of 0.5kg is moving with a velocity of 100m per sec. the wavelength associated with its motion is

Answer 1

λ = h/(mv)

λ = 6.626 * 10^-34 / (0.5 * 100)

λ = 1.325 * 10^-35 m

Answer 2

Answer: The wavelength associated with the ball is $0.132\times 10^{-34}m$

Explanation:

To calculate the wavelength of the ball, we will use the equation given by De-Broglie, which is:

$\lambda=\frac{h}{mv}$

where,$\lambda$ = Wavelength of the ball = ?

h = Planck's constant = $6.6\times 10^{-34}kgm^2/s$

m = Mass of the ball = 0.5 kg  

v = speed of the ball = 100 m/s    

Putting values in above equation, we get:

$\lambda=\frac{6.6\times 10^{-34}kgm^2/s}{0.5kg\times 100m/s}$

$\lambda=0.132\times 10^{-34}m$