Question

What is the wavelength of particle of mass 1 gram moving with velocity of 200 metre per second?

Answer 1

according to de- broglie,

lambda= h/mv

lambda is wavelength..

so wavelength= 6.6×10^-34/1×10^-3×200

where.. 6.6×10^-34 is planks constant..

solve the constants and you will get the value of wavelength in metres.