<prompt> What should be the loss of hearing at least for webers test to lateralise5 db10 db15 db20 db  <response>: Lateralisation of sound in Weber test with a tuning fork of 512Hz implies a conductive loss of 15-25 dB in the ipsilateral ear or an SNHL in the contralateral ear. Ref: Dhingra; 6th Edition; pg no 22 