Most commonly used tuning fork in ear examination is

512Hz is used normally Note: These tests are performed with tuning forks of different frequencies such as 128, 256, 512, 1024, 2048 and 4096 Hz, But for routine clinical practice, tuning fork of 512 Hz is ideal. Forks of lower frequencies produce a sense of bone vibration while those of higher frequencies have a shoer decay time and are thus not routinely preferred. Ref: Dhingra; 6th Edition; pg no 21