Question

Calculate the wavelength associated with cricket ball of mass of 150 g travelling with a velocity
of 25 ms-1.
​

Answer 1

Answer:

Given :

▪ Mass of ball = 150g = 0.15kg

▪ Velocity of ball = 25m/s

To Find :

⟶ Wavelength associated with ball.

Solution :

➳ Wavelength associated with moving object varies inversely proportional with its momentum.

➳ Momentum is defined as the product of mass and velocity.

Mathematically,

where, h denotes plank constant

➳ This equation is called as 'de - Broglie equation.'

Explanation: