 
			 
			MCQOPTIONS
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				| 1. | When a tuning fork produces sound waves in air, which one of the following is same in the material of tuning fork as well as in air [AFMC 2005] | 
| A. | Wavelength | 
| B. | Frequency | 
| C. | 150 Hz | 
| D. | Amplitude | 
| Answer» C. 150 Hz | |