Question

What is the wavelength of a 160g cricket ball travelling at 140 km/hr.

Answer 1

Answer:

1.47×10^-34 m

Explanation:

Mass of the bail, m = 150 g = 0.15 kg.

speed of the ball, v = 30 ms−1

 Momentum, p=mv=0.15×30=4.5kgms −1

 de Broglie wavelength,  λ=  h/p

​                                    =6.63×10^−34/4.5

                                          =1.47×10^-34 m