• # question_answer Two tuning forks when sounded together produced 4 beats/sec. The frequency of one fork is 256. The number of beats heard increases when the fork is loaded with wax. The frequency of the other fork is- A) 504                              B) 520C) 260                              D) 252

$\,{{\nu }_{unknown}}\,\,=\,\,{{\nu }_{known}}\pm \,\,4$ $=\,\,256\,\,+\,\,4$ $=\,\,260\,Hz$