This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Diagnostic & Operative ENT, Subject name: ENT
[{'content': 'Tuning fork frequency used in ENT is? \nSelect and explain. \nA. 256 Hz, B. 512 Hz, C. 1024 Hz, D. 2048 Hz', 'role': 'user'}, {'content': 'Answer: B \nExplanation: ANSWER: (B) 512 HzREF: Dhingra 4th ed page 21Even though tuning forks of frequencies 256,512, 1024, 2048 are used in ENT, however the most preferred and commonly used is 512 HZ since tuning forks of higher frequency have shorter decay time and those with lower frequency produce a sense of bone vibration,', 'role': 'assistant'}]