A `pi^(sigma)` meson at rest decays into two photons of equal energy. If the wavelength (in `m`)
Channel: Doubtnut
Date: 12/04/2020

A `pi^(sigma)` meson at rest decays into two photons of equal energy. If the wavelength (in `m`) of the photons is `1.8xx10^(-n)` then find `n//2` ( The mass of the `pi^(o)135 Me V//c`).