 
			 
			MCQOPTIONS
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				| 1. | In a wave motion \[y=a\sin (kx-\omega t)\], y can represent [IIT-JEE 1999] | 
| A. | Electric field | 
| B. | Magnetic field | 
| C. | 280 Hz | 
| D. | Pressure | 
| Answer» D. Pressure | |