 
			 
			MCQOPTIONS
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				| 1. | The condition for observing Fraunhofer diffraction from a single slit is that the light wavefront incident on the slit should be [MP PMT 1987] | 
| A. | Spherical | 
| B. | Cylindrical | 
| C. | UV rays | 
| D. | Elliptical | 
| Answer» D. Elliptical | |