180 72 X to 2 alpha to bita to gamma to AZ X ‘ . Z and A are (a) 69, 172 (b) 172 , 69 (c) 180 , 70 (d) 182, 68 172 (b) 172 180 72 X to 2 alpha to bita to gamma to AZ X ' . Z and A are (a) 69 68 69 (c) 180 70 (d) 182 February 14, 2021 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) , Facebook Messenger WhatsApp Share this:TwitterFacebook Related