A particle is moving 3 times faster than the speed of electron. If the ratio of wavelength of particle and electron is 1.8 10⁻⁴ , then particle is

Step-by-step solution

Given : _ particle _ electron =1.8 10⁻⁴ and v_ particle v_ electron =3 According to de-Broglie equation, = h m v _ particle _ electron = h m_ particle v_ particle m_ electron v_ electron h = m_ electron m_ particle v_ electron v_ particle 1.8 10⁻⁴= 9.1 10⁻³¹ ~kg m_ particle 1 3 m_ particle = 9.1 10⁻³¹ 1.8 10⁻⁴ 3 =1.6852 10⁻²⁷ ~kg Actual mass of neutron is 1.67493 10⁻²⁷ ~kg . Hence, the particle is neutron.