Answer: c
Beta particles are emitted when a nucleus decays forming a proton and electron. The electron formed inside the nucleus will have de-Broglie wavelength more than nuclear dimensions, hence escapes the nucleus.
Beta rays emitted by a radioactive material are (a) electromagnetic radiations (b) the electrons orbiting around the nucleus (c) charged particles emitted by nucleus (d) neutral particles
Beta particles are emitted when a nucleus decays forming a proton and electron. The electron formed inside the nucleus will have de-Broglie wavelength more than nuclear dimensions, hence escapes the nucleus.
