A ray of monochromatic light is incident on the refracting face of a prism (angle 75). It passes through the prism and is incident on the other face at the critical angle. If the refractive index A ray of monochromatic light is incident on the refracting face of a prism (angle 75). It passes through the prism and is incident on the other face at the critical angle. If the refractive index October 6, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) , Facebook Messenger WhatsApp Share this:TwitterFacebook Related